First, you would distribute 2 into the parentheses so you would have 6x-8= 5x+6. Subtract 5x from both sides so you have x-8=6. Finally, add 8 to both sides which leaves you with x= 14
i think we need some more information or something is there any other information that they give you for this question?
Answer:
you have to put the formula of perimeter
Hi there!

Begin by distributing the 5:
5(2x) + 5(-12) = -90
Simplify:
10x - 60 = -90
Add 60 to both sides:
10x = -90 + 60
10x = -30
Divide both sides by 10:
x = -3
Answer:
A, complementary angles sum up to 90°