Answer:
x=7
Step-by-step explanation:
4x+12=40
-12
4x=28/4
Solve for positive 72 and separate the negative part as
The rest of calculation is same..
Answer:
-11
Step-by-step explanation:
Answer:
the faster car will be 7 miles ahead the slower car
Step-by-step explanation:
Answer:
x=92
Step-by-step explanation:
those to angles are supplementary meaning that they add up to equal 180
so you set up the equation 180=x+x-4
180=2x-4
step 1 add 4 to each side
184=2x
step 2 divide each side by 2
x=92
so the angles equal 92 and 88
