Answer:
x = 4
Explanation:
Knowledge Needed
If you add, subtract, multiply, or divide the same number/variable on both sides of the equation, the end result will be the same.
To solve for a variable, we must first isolate it, meaning it is on its own side of the equation separate from integers and other constants.
The Question
8x + 4 = 27 + 6x - 15
Subtract 4 on both sides.
8x + 4 - 4 = 27 + 6x - 15 - 4
Combine like terms.
8x = 8 + 6x
Subtract 6x on both sides.
8x - 6x = 8 + 6x - 6x
Combine like terms.
2x = 8
Divide 2 on both sides.
Simplify.
x = 4