Question

My brain hurts

d+f+e=180
d=4x+2
f=7x-8
e=4x+6

Answer 1

⇒You are given the values of the variables d,f,e

⇒d=4x+2

⇒e=4x+6

⇒f=7x-8

In the place of of the variable plug in the values:

`(4x+2)+(4x+6)+(7x-8)=180\\4x+4x+7x+2+6-8=180\\15x+8-8=180\\15x=180\\(15x)/(15) =(180)/(15) \\x=12`

To find the values of the variable d,e and f plug in the the value of x and and simplify.

`d=4(12)+2\\d=48+2\\d=50`

`e=4(12)+6\\e=48+6\\e=54\\`

`f=7(12)-8\\f=84-8\\f=76`

GOODLUCK!!!!