Question

PLSSSS ANSWER 10 POINTS AND BRAINLIEST

Answer 1

Answer:

$x=20$

Step-by-step explanation:

we know that

$x+100+3x=180$

so solve for x

$4x+100=180\\\\4x=80\\\\x=\frac{80}{4}=20$

Answer 2

Answer: x = 20

Step-by-step explanation:

180 - 100 = 80

4x = 80

x = 20