SOLUTION: -9x+ y=20 9x+16y=14 y=20+-9 9x + 16 (20+-9x)=14 9x+320=144x=14 153x+320=14 I understand up to here x= -2 dont understand how they got these answers

Question 585445: -9x+ y=20
9x+16y=14
y=20+-9
9x + 16 (20+-9x)=14
9x+320=144x=14
153x+320=14 I understand up to here

x= -2 dont understand how they got these answers could you show me step by step please?
y= 2
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Start with the given equation.

Subtract from both sides.

Combine like terms on the right side.

Divide both sides by to isolate .

Reduce.

Now that you have x = -2, use it in to get

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