IDONTHAVEABRAIN
31.10.2019 •
Mathematics
2x+7y=-8 - 2x-5y=-1
what is the result of subtracting the second equation from the first?
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Ответ:
Step-by-step explanation:
we have
Subtracting the second equation from the first is the same as multiplying the second equation by -1 and then adding the equations
so
Multiply by -1 both sides the second equation
Adds the equations
Combine like terms
Ответ: