x+x-(20)(2)+5+3x=123

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Solution for x+x-(20)(2)+5+3x=123 equation:


Simplifying
x + x + -1(20)(2) + 5 + 3x = 123

Multiply -1 * 20
x + x + -20 * 2 + 5 + 3x = 123

Multiply -20 * 2
x + x + -40 + 5 + 3x = 123

Reorder the terms:
-40 + 5 + x + x + 3x = 123

Combine like terms: -40 + 5 = -35
-35 + x + x + 3x = 123

Combine like terms: x + x = 2x
-35 + 2x + 3x = 123

Combine like terms: 2x + 3x = 5x
-35 + 5x = 123

Solving
-35 + 5x = 123

Solving for variable 'x'.

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

Add '35' to each side of the equation.
-35 + 35 + 5x = 123 + 35

Combine like terms: -35 + 35 = 0
0 + 5x = 123 + 35
5x = 123 + 35

Combine like terms: 123 + 35 = 158
5x = 158

Divide each side by '5'.
x = 31.6

Simplifying
x = 31.6

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