5+7(x-3)=21

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Solution for 5+7(x-3)=21 equation:


Simplifying
5 + 7(x + -3) = 21

Reorder the terms:
5 + 7(-3 + x) = 21
5 + (-3 * 7 + x * 7) = 21
5 + (-21 + 7x) = 21

Combine like terms: 5 + -21 = -16
-16 + 7x = 21

Solving
-16 + 7x = 21

Solving for variable 'x'.

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

Add '16' to each side of the equation.
-16 + 16 + 7x = 21 + 16

Combine like terms: -16 + 16 = 0
0 + 7x = 21 + 16
7x = 21 + 16

Combine like terms: 21 + 16 = 37
7x = 37

Divide each side by '7'.
x = 5.285714286

Simplifying
x = 5.285714286

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