Question

3x+5=x+15
how to solve equation?​

Answer 1

3x+5=x+15

Move any terms with x to the left side of the equation.

2x+5=15

Move any terms without x to the right side of the equation.

2x=10

Divide each terms by 2

x=5

Hope this helps! :)

Answer 2

Simplifying

3x + 5 = x + 15

Reorder the terms:

5 + 3x = x + 15

Reorder the terms:

5 + 3x = 15 + x

Solving

5 + 3x = 15 + x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-1x' to each side of the equation.

5 + 3x + -1x = 15 + x + -1x

Combine like terms: 3x + -1x = 2x

5 + 2x = 15 + x + -1x

Combine like terms: x + -1x = 0

5 + 2x = 15 + 0

5 + 2x = 15

Add '-5' to each side of the equation.

5 + -5 + 2x = 15 + -5

Combine like terms: 5 + -5 = 0

0 + 2x = 15 + -5

2x = 15 + -5

Combine like terms: 15 + -5 = 10

2x = 10

Divide each side by '2'.

x = 5

Simplifying

x = 5

Explanation: