D) because the first equation*3-the second equation*;
the left side=0, the right side = 36
Answer: -1
Step-by-step explanation:
Answer:
c+2c+12=75
c = 21
Steps:
c+2c+12=75
Simplify both sides of the equation.
c+2c+12=75
(c+2c)+(12)=75(Combine Like Terms)
3c+12=75
3c+12=75
Subtract 12 from both sides.
3c+12−12=75−12
3c=63
Divide both sides by 3.
Answer:
<h2>x= -2</h2>
Step-by-step explanation:

Collect like terms and simplify

Divide both sides of the equation by 8

Simplify

Answer: 6-
Step-by-step explanation: