SOLUTION: System of equations: -7x+3y=-65 -7x+10y=-135 Write an equation that results from subtracting two equations

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Question 1204598: System of equations:
-7x+3y=-65
-7x+10y=-135
Write an equation that results from subtracting two equations
Answer by ikleyn(52756) About Me  (Show Source):
You can put this solution on YOUR website!
.
System of equations:
-7x+3y=-65
-7x+10y=-135
Write an equation that results from subtracting two equations
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If you subtract first equation from the second equation, the resulting equation will be


    10y - 3y = -135 - (-65),

or

       7y    = -135 + 65,

or

       7y    =    -70       <<<---===   final

Subtracted and explained.