Question

solve 9x+9=90-9x+27​

Answer 1

Answer:

Simplifying

9x + 9 = 90 + -9x + 27

Reorder the terms:

9 + 9x = 90 + -9x + 27

Reorder the terms:

9 + 9x = 90 + 27 + -9x

Combine like terms: 90 + 27 = 117

9 + 9x = 117 + -9x

Solving

9 + 9x = 117 + -9x

Solving for variable 'x'.

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

Add '9x' to each side of the equation.

9 + 9x + 9x = 117 + -9x + 9x

Combine like terms: 9x + 9x = 18x

9 + 18x = 117 + -9x + 9x

Combine like terms: -9x + 9x = 0

9 + 18x = 117 + 0

9 + 18x = 117

Add '-9' to each side of the equation.

9 + -9 + 18x = 117 + -9

Combine like terms: 9 + -9 = 0

0 + 18x = 117 + -9

18x = 117 + -9

Combine like terms: 117 + -9 = 108

18x = 108

Divide each side by '18'.

x = 6

Simplifying

x = 6

Answer 2

9x + 9 = 90 - 9x + 27

9x + 9 = 117 - 9x

9x + 9x = 117 -9

18x = 108

x = 6