15x+(3x+2x)=18-(x-1)

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Solution for 15x+(3x+2x)=18-(x-1) equation:


Simplifying
15x + (3x + 2x) = 18 + -1(x + -1)

Combine like terms: 3x + 2x = 5x
15x + (5x) = 18 + -1(x + -1)
15x + (5x) = 18 + -1(x + -1)

Combine like terms: 15x + (5x) = 20x
20x = 18 + -1(x + -1)

Reorder the terms:
20x = 18 + -1(-1 + x)
20x = 18 + (-1 * -1 + x * -1)
20x = 18 + (1 + -1x)

Combine like terms: 18 + 1 = 19
20x = 19 + -1x

Solving
20x = 19 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
20x + x = 19 + -1x + x

Combine like terms: 20x + x = 21x
21x = 19 + -1x + x

Combine like terms: -1x + x = 0
21x = 19 + 0
21x = 19

Divide each side by '21'.
x = 0.9047619048

Simplifying
x = 0.9047619048

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