(3x+1)+(x+13)=90

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Solution for (3x+1)+(x+13)=90 equation:


Simplifying
(3x + 1) + (x + 13) = 90

Reorder the terms:
(1 + 3x) + (x + 13) = 90

Remove parenthesis around (1 + 3x)
1 + 3x + (x + 13) = 90

Reorder the terms:
1 + 3x + (13 + x) = 90

Remove parenthesis around (13 + x)
1 + 3x + 13 + x = 90

Reorder the terms:
1 + 13 + 3x + x = 90

Combine like terms: 1 + 13 = 14
14 + 3x + x = 90

Combine like terms: 3x + x = 4x
14 + 4x = 90

Solving
14 + 4x = 90

Solving for variable 'x'.

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

Add '-14' to each side of the equation.
14 + -14 + 4x = 90 + -14

Combine like terms: 14 + -14 = 0
0 + 4x = 90 + -14
4x = 90 + -14

Combine like terms: 90 + -14 = 76
4x = 76

Divide each side by '4'.
x = 19

Simplifying
x = 19

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