3(5x)-3(7)=7x+7-6x

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Solution for 3(5x)-3(7)=7x+7-6x equation:


Simplifying
3(5x) + -3(7) = 7x + 7 + -6x

Remove parenthesis around (5x)
3 * 5x + -3(7) = 7x + 7 + -6x

Multiply 3 * 5
15x + -3(7) = 7x + 7 + -6x

Multiply -3 * 7
15x + -21 = 7x + 7 + -6x

Reorder the terms:
-21 + 15x = 7x + 7 + -6x

Reorder the terms:
-21 + 15x = 7 + 7x + -6x

Combine like terms: 7x + -6x = 1x
-21 + 15x = 7 + 1x

Solving
-21 + 15x = 7 + 1x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-21 + 15x + -1x = 7 + 1x + -1x

Combine like terms: 15x + -1x = 14x
-21 + 14x = 7 + 1x + -1x

Combine like terms: 1x + -1x = 0
-21 + 14x = 7 + 0
-21 + 14x = 7

Add '21' to each side of the equation.
-21 + 21 + 14x = 7 + 21

Combine like terms: -21 + 21 = 0
0 + 14x = 7 + 21
14x = 7 + 21

Combine like terms: 7 + 21 = 28
14x = 28

Divide each side by '14'.
x = 2

Simplifying
x = 2

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