4x-2+(5x-1)=3(7-x)

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Solution for 4x-2+(5x-1)=3(7-x) equation:


Simplifying
4x + -2 + (5x + -1) = 3(7 + -1x)

Reorder the terms:
4x + -2 + (-1 + 5x) = 3(7 + -1x)

Remove parenthesis around (-1 + 5x)
4x + -2 + -1 + 5x = 3(7 + -1x)

Reorder the terms:
-2 + -1 + 4x + 5x = 3(7 + -1x)

Combine like terms: -2 + -1 = -3
-3 + 4x + 5x = 3(7 + -1x)

Combine like terms: 4x + 5x = 9x
-3 + 9x = 3(7 + -1x)
-3 + 9x = (7 * 3 + -1x * 3)
-3 + 9x = (21 + -3x)

Solving
-3 + 9x = 21 + -3x

Solving for variable 'x'.

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

Add '3x' to each side of the equation.
-3 + 9x + 3x = 21 + -3x + 3x

Combine like terms: 9x + 3x = 12x
-3 + 12x = 21 + -3x + 3x

Combine like terms: -3x + 3x = 0
-3 + 12x = 21 + 0
-3 + 12x = 21

Add '3' to each side of the equation.
-3 + 3 + 12x = 21 + 3

Combine like terms: -3 + 3 = 0
0 + 12x = 21 + 3
12x = 21 + 3

Combine like terms: 21 + 3 = 24
12x = 24

Divide each side by '12'.
x = 2

Simplifying
x = 2

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