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Y = -5x - 7 Y=10x+8 substitution
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Y = -5x - 7 Y=10x+8 substitution

User Peter Sladek
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1 Answer

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Explanation:

Since both equations are = y ....just equate them (or substitute the first equation into the second one ) to get:

-5x-7 = 10x+8 add 5x and subtract 8 from both sides of the equation

-15 = 15 x

x = -1 use this value in either equation to calculate y = -2

User Pedro Gonzalez
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