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gayaneshka [121]
3 years ago
9

What’s the solution to y=-7x+1 5x+4y=-19

Mathematics
1 answer:
Eva8 [605]3 years ago
8 0

Answer:

<h2>x = 1 and y = -6 → (1, -6)</h2>

Step-by-step explanation:

y=-7x+1\qquad(1)\\\\5x+4y=-19\qquad(2)\\\\\text{Substitute (1) to (2):}\\\\5x+4(-7x+1)=-19\qquad\text{use the distributive property}\\\\5x+(4)(-7x)+(4)(1)=-19\\\\5x-28x+4=-19\qquad\text{subtract 4 from both sides}\\\\5x-28x+4-4=-19-4\qquad\text{combine like terms}\\\\-23x=-23\qquad\text{divide both sides by (-23)}\\\\\dfrac{-23x}{-23}=\dfrac{-23}{-23}\\\\x=1

\text{Substitute the value of}\ x\ \text{to (1):}}\\\\y=-7(1)+1\\\\y=-7+1\\\\y=-6

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Answer:

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Step-by-step explanation:

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