9x+10+3x=90

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Solution for 9x+10+3x=90 equation:


Simplifying
9x + 10 + 3x = 90

Reorder the terms:
10 + 9x + 3x = 90

Combine like terms: 9x + 3x = 12x
10 + 12x = 90

Solving
10 + 12x = 90

Solving for variable 'x'.

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

Add '-10' to each side of the equation.
10 + -10 + 12x = 90 + -10

Combine like terms: 10 + -10 = 0
0 + 12x = 90 + -10
12x = 90 + -10

Combine like terms: 90 + -10 = 80
12x = 80

Divide each side by '12'.
x = 6.666666667

Simplifying
x = 6.666666667

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