Substitution Method
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What is the second step?
Substitute
What is the first step? x = 16 - 4y 3x + 4y = 8
x = 16 -4y
What is the first step? x = 2y - 6 4x + 6y = 4
x = 2y - 6
What's the first step? x = 5 y = x +1
x =5
What is the first step? 3x + y = -7 -2x + 4y = 0
y = -3x - 7
What is the first step 6x + y = 4 x - 4y = 19
y = -6x + 4
What is the first step? 2x + 8y = 20 y = 2
y = 2
What is the first step y = 2x -1 2x + y = 3
y = 2x -1
What's the first step? y = 3x + 2 x + 2y = 11
y = 3x + 2
Substitute x = 16 - 4y 3x + 4y = 8
3(16-4y) + 4y = 8
Step 1
Find which variable is alone or get one of the variables alone
Substitute x = y + 3 2x - y = 5
2(y + 3) - y = 5
