bjimarion bjimarion

16-12-2020
Mathematics

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Solve the system by substitution.
y = -3x + 4
y = -7x
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rainboweclipse1 rainboweclipse1

16-12-2020

Answer:

{y,x} = {7,-1}

Step-by-step explanation:

(-7x) + 3x = 4

- 4x = 4

4x = - 4

x = - 1

y = -7x

x = -1

y = -7(-1) = 7

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