3(7x+42)=63

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Solution for 3(7x+42)=63 equation:


Simplifying
3(7x + 42) = 63

Reorder the terms:
3(42 + 7x) = 63
(42 * 3 + 7x * 3) = 63
(126 + 21x) = 63

Solving
126 + 21x = 63

Solving for variable 'x'.

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

Add '-126' to each side of the equation.
126 + -126 + 21x = 63 + -126

Combine like terms: 126 + -126 = 0
0 + 21x = 63 + -126
21x = 63 + -126

Combine like terms: 63 + -126 = -63
21x = -63

Divide each side by '21'.
x = -3

Simplifying
x = -3

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