4x+3+x+8=90

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Solution for 4x+3+x+8=90 equation:


Simplifying
4x + 3 + x + 8 = 90

Reorder the terms:
3 + 8 + 4x + x = 90

Combine like terms: 3 + 8 = 11
11 + 4x + x = 90

Combine like terms: 4x + x = 5x
11 + 5x = 90

Solving
11 + 5x = 90

Solving for variable 'x'.

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

Add '-11' to each side of the equation.
11 + -11 + 5x = 90 + -11

Combine like terms: 11 + -11 = 0
0 + 5x = 90 + -11
5x = 90 + -11

Combine like terms: 90 + -11 = 79
5x = 79

Divide each side by '5'.
x = 15.8

Simplifying
x = 15.8

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