Please help urgent 8th grade math

Mathematics

1 answer:

Keith_Richards [23]3 years ago

4 0

Answer:

use your phone to scan the text on google

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Solve the system by substitution. y=−3x-2 -7x+3y=10 PLEASE HELP

enyata [817]

Y=-3x-2
subsitute -3x-2 for y
-7x+3(-3x-2)=10
distribute
a(b+c)=ab+ac
3(-3x-2)=-9x-6

-7x-9x-6=10
add like terms
-16x-6=10
add 6
-16x=16
multiply -1
16x=-16
divide 16
x=-1

subsitute
y=-3x-2
y=-3(-1)-2
y=3-2
y=1

x=-1
y=1

(x,y)
(-1,1)

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Step-by-step explanation:

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