solve 20/x+y+3/x-y=7 and 8/x-y-15/x+y=5
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Step-by-step explanation:
1) 28x+y+3x−y=7
Step 1: Multiply both sides by x.
=31=7x
Step 2: Flip the equation.
=7x=31
Step 3: Divide both sides by 7.
2) 8x−y−15x+y=5
Step 1: Multiply both sides by x.
= −7=5x
Step 2: Flip the equation.
=5x=−7
Step 3: Divide both sides by 5.
=5x5=−75
x= −75
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