VERY URGENT, PLEASE HELP WITH ALGEBRA 1 MATH !!!!!!please look attachment

Mathematics

1 answer:

SIZIF [17.4K]3 years ago

6 0

Answer:

x = 6

Step-by-step explanation:

y = -x - 4

3x + y = 8

Substitute the y with -x - 4

3x - x - 4 = 8

Combine the terms

2x - 4 = 8

Move the constant to the other side

2x - 4 = 8

+4 +4

2x = 12

Divide both sides by 2

2x/2 = 12/2

x = 6

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