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3 years ago

Solve the system by substitution. y = 4x y = 8x - 36

Mathematics

1 answer:

blagie [28]3 years ago

8 0

Answer:

(9,36)

Step-by-step explanation:

Substitute the 4x for the y in second equation.

Basically setting them equal to each other because the both have 'y='

4x = 8x - 36

-4x = -36 (subtract 8x from both sides)

x = 9 (divide by -4, both sides)

y = 4(9) (Substitute the x value into first equation)

y = 36

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