Answer:
X equals 30.
Explanation:
To solve this, we need to move things around a bit in this equation.
(x+90)=4x
First, we need to move the x on the left side to the right side. Remember, if the number or variable you are moving to the other side of the equation is positive, it becomes negative on the other side. In other words, we will subtract that x from 4x.
90=3x
Now divide by 3 on both sides.
30=x
Now check.
(30+90)=4(30)
120=120
We are correct. x equals 30.
