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7x+2y=-48, I have to solve for either x or y. Then, I have to solve -7x+y=60 for the remainding variable, someone help!
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7x+2y=-48, I have to solve for either x or y. Then, I have to solve -7x+y=60 for the remainding variable, someone help!

User Vallllll
by
8.2k points

1 Answer

3 votes
7x+2y=-48 subtract one the one equation from the other to cancel out a variable
-7x+y=60
________
3y=12 divide by 3
y=4 put in y for an equation

-7x + 4=60 subtract 4
-7x=56 divide by -7
x=-8

so, your answer is...x=-8 and y=4

User Hariharan B
by
8.5k points
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