6.2 Solving Equations Using Addition or Subtraction
b + 7 + 12 = 30
b=11
Write the word sentence as an equation. Then solve the equation. 84 is 99 fewer than a number c
c=183
Write the word sentence as an equation. Then solve the equation. 46 is the total of 18 and a number d.
d=28
22 + 15 = d − 17
d=54
25 = f + 13
f=12
f − 22 = 14
f=36
f − 27 = 19
f=46
s + 24 = 35
s=11
8 + s = 10
s=2
v − 7 = 9 + 12
v=28
Write the word sentence as an equation. Then solve the equation. A number w decreased by 10 is 3.
w=13
Write the word sentence as an equation. Then solve the equation. 13 subtracted from a number w is 15.
w=28
x − 5 = 9
x=14
x - 5 = 20
x=25
Write the word sentence as an equation. Then solve the equation. The sum of a number x and 12 equals 15.
x=3
Write the word sentence as an equation. Then solve the equation. 4 less than a number g equals 9.
g=13
Write the word sentence as an equation. Then solve the equation. 93 is the sum of a number g and 58.
g=35
64 = h + 30
h=34
k + 6 = 18
k=12
Write the word sentence as an equation. Then solve the equation. 11 more than a number k equals 29.
k=18
Write the word sentence as an equation. Then solve the equation. A number k increased by 7 is 34.
k=27
1.2 = m − 2.5
m=3.7
m + 18 + 23 = 71
m=30
Write the word sentence as an equation. Then solve the equation. 9 is the difference of a number n and 7.
n=16
Tell whether the given value is a solution of the equation. a + 6 = 17; a = 9
no; 15 does not equal 17
Tell whether the given value is a solution of the equation. g − 9 = 24; g = 35
no; 26 does not equal 24
Tell whether the given value is a solution of the equation. p + 10 = 38; p = 18
no; 28 does not equal 38
Tell whether the given value is a solution of the equation. n + 8 = 42; n = 36
no; 44 does not equal 42
Tell whether the given value is a solution of the equation. 9 − g = 5; g = 3
no; 6 does not equal 5
Tell whether the given value is a solution of the equation. t − 5 = 17; t = 12
no; 7 does not equal 17
Write the word sentence as an equation. Then solve the equation. A number p decreased by 19 is 6.
p=25
p + 5 = 8
p=3
25 = q + 14
q=11
q + 8 = 25
q=17
q - 67 = 3
q=70
8 = r − 14
r=22
5 + 44 = 2 + r
r=47
a + 5.5 = 17.3
a=11.8
You get in an elevator and go up 4 floors. You exit on the 12th floor. Write and solve an equation to find what floor you got on the elevator. x
x=8
y − 7 = 3
y = 10
Write the word sentence as an equation. Then solve the equation. 20 equals 8 more than a number y.
y=12
y − 12 = 0
y=12
y − 10 = 4
y=14
y + 4 − 1 = 18
y=15
Tell whether the given value is a solution of the equation. s − 68 = 11; s = 79
yes; 11 equals 11
Tell whether the given value is a solution of the equation. 35 = 7n; n = 5
yes; 35 equals 35
Tell whether the given value is a solution of the equation. 4y = 56; y = 14
yes; 56 equals 56
Tell whether the given value is a solution of the equation. b÷ 6 = 8; b = 48
yes; 8 equals 8
z − 3 = 13
z= 16
z + 4 = 6
z=2
