(15x+7)-(x+3)=90

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Solution for (15x+7)-(x+3)=90 equation:


Simplifying
(15x + 7) + -1(x + 3) = 90

Reorder the terms:
(7 + 15x) + -1(x + 3) = 90

Remove parenthesis around (7 + 15x)
7 + 15x + -1(x + 3) = 90

Reorder the terms:
7 + 15x + -1(3 + x) = 90
7 + 15x + (3 * -1 + x * -1) = 90
7 + 15x + (-3 + -1x) = 90

Reorder the terms:
7 + -3 + 15x + -1x = 90

Combine like terms: 7 + -3 = 4
4 + 15x + -1x = 90

Combine like terms: 15x + -1x = 14x
4 + 14x = 90

Solving
4 + 14x = 90

Solving for variable 'x'.

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

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

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

Combine like terms: 90 + -4 = 86
14x = 86

Divide each side by '14'.
x = 6.142857143

Simplifying
x = 6.142857143

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