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3 years ago

What is 10x-10y=0 -20x-5y=-25

Mathematics

2 answers:

laiz [17]3 years ago

7 0

Solve for the first variable in one of the equation, then substitute the results into the other equation (1,1)

Arada [10]3 years ago

6 0

-10x-15-(-25)

-5(2x+3-5)

-5(2x-2)

-5*2 (x-1)

= -10(x-1)

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