Solve the system of equations-5x-7y=23and 3x+4y=12 by combining the equations
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Answer:
x=8 and y= -9
Step-by-step explanation:
(-5x-7y=23)x3
(3x+4y=-12)x5
-15x-21y=69
15x+20y=-60
-y=9
y=-9
x=8