3x+7(x-4)=3(x-7)

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


Simplifying
3x + 7(x + -4) = 3(x + -7)

Reorder the terms:
3x + 7(-4 + x) = 3(x + -7)
3x + (-4 * 7 + x * 7) = 3(x + -7)
3x + (-28 + 7x) = 3(x + -7)

Reorder the terms:
-28 + 3x + 7x = 3(x + -7)

Combine like terms: 3x + 7x = 10x
-28 + 10x = 3(x + -7)

Reorder the terms:
-28 + 10x = 3(-7 + x)
-28 + 10x = (-7 * 3 + x * 3)
-28 + 10x = (-21 + 3x)

Solving
-28 + 10x = -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.
-28 + 10x + -3x = -21 + 3x + -3x

Combine like terms: 10x + -3x = 7x
-28 + 7x = -21 + 3x + -3x

Combine like terms: 3x + -3x = 0
-28 + 7x = -21 + 0
-28 + 7x = -21

Add '28' to each side of the equation.
-28 + 28 + 7x = -21 + 28

Combine like terms: -28 + 28 = 0
0 + 7x = -21 + 28
7x = -21 + 28

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

Divide each side by '7'.
x = 1

Simplifying
x = 1

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