SOLUTION: Use elimination to solve: 3x+5y=-13 2x-3y=23
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Question 748907
:
Use elimination to solve:
3x+5y=-13
2x-3y=23
Answer by
Cromlix(4381)
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3x+5y=-13 ...1
2x-3y=23 ...2
Multiply (1) by 2
and (2) by 3
6x + 10y = -26 ...3
6x - 9y = 69 ...4
Subtract (4) from (3)
19y = - 95
y = - 5
Substitute y = - 5
into (2)
2x - 3y = 23
2x + 15 = 23
2x = 23 - 15
2x = 8
x = 4