x+15+x+x-5=100

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Solution for x+15+x+x-5=100 equation:


Simplifying
x + 15 + x + x + -5 = 100

Reorder the terms:
15 + -5 + x + x + x = 100

Combine like terms: 15 + -5 = 10
10 + x + x + x = 100

Combine like terms: x + x = 2x
10 + 2x + x = 100

Combine like terms: 2x + x = 3x
10 + 3x = 100

Solving
10 + 3x = 100

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 + 3x = 100 + -10

Combine like terms: 10 + -10 = 0
0 + 3x = 100 + -10
3x = 100 + -10

Combine like terms: 100 + -10 = 90
3x = 90

Divide each side by '3'.
x = 30

Simplifying
x = 30

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