7x-3(2-5x)=40-x

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Solution for 7x-3(2-5x)=40-x equation:


Simplifying
7x + -3(2 + -5x) = 40 + -1x
7x + (2 * -3 + -5x * -3) = 40 + -1x
7x + (-6 + 15x) = 40 + -1x

Reorder the terms:
-6 + 7x + 15x = 40 + -1x

Combine like terms: 7x + 15x = 22x
-6 + 22x = 40 + -1x

Solving
-6 + 22x = 40 + -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.
-6 + 22x + x = 40 + -1x + x

Combine like terms: 22x + x = 23x
-6 + 23x = 40 + -1x + x

Combine like terms: -1x + x = 0
-6 + 23x = 40 + 0
-6 + 23x = 40

Add '6' to each side of the equation.
-6 + 6 + 23x = 40 + 6

Combine like terms: -6 + 6 = 0
0 + 23x = 40 + 6
23x = 40 + 6

Combine like terms: 40 + 6 = 46
23x = 46

Divide each side by '23'.
x = 2

Simplifying
x = 2

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