Question

X + 3 + x - 8 + x = 55
x = ?

Answer 1

x=30

Explanation:

isolate the numbers that don't contain the variable, then divide the factors that don't contain the variable.

Answer 2

x=20

Explanation:

Given: x+3+x-8+x=55

Combine like terms: 3x-5=55

Add 5 to the other side: 3x=60

Divide both sides by 3: X=20