x+(x+7)+3(x+7)=63

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Solution for x+(x+7)+3(x+7)=63 equation:


Simplifying
x + (x + 7) + 3(x + 7) = 63

Reorder the terms:
x + (7 + x) + 3(x + 7) = 63

Remove parenthesis around (7 + x)
x + 7 + x + 3(x + 7) = 63

Reorder the terms:
x + 7 + x + 3(7 + x) = 63
x + 7 + x + (7 * 3 + x * 3) = 63
x + 7 + x + (21 + 3x) = 63

Reorder the terms:
7 + 21 + x + x + 3x = 63

Combine like terms: 7 + 21 = 28
28 + x + x + 3x = 63

Combine like terms: x + x = 2x
28 + 2x + 3x = 63

Combine like terms: 2x + 3x = 5x
28 + 5x = 63

Solving
28 + 5x = 63

Solving for variable 'x'.

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

Add '-28' to each side of the equation.
28 + -28 + 5x = 63 + -28

Combine like terms: 28 + -28 = 0
0 + 5x = 63 + -28
5x = 63 + -28

Combine like terms: 63 + -28 = 35
5x = 35

Divide each side by '5'.
x = 7

Simplifying
x = 7

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