5(x-3)+2x=21

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Solution for 5(x-3)+2x=21 equation:


Simplifying
5(x + -3) + 2x = 21

Reorder the terms:
5(-3 + x) + 2x = 21
(-3 * 5 + x * 5) + 2x = 21
(-15 + 5x) + 2x = 21

Combine like terms: 5x + 2x = 7x
-15 + 7x = 21

Solving
-15 + 7x = 21

Solving for variable 'x'.

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

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

Combine like terms: -15 + 15 = 0
0 + 7x = 21 + 15
7x = 21 + 15

Combine like terms: 21 + 15 = 36
7x = 36

Divide each side by '7'.
x = 5.142857143

Simplifying
x = 5.142857143

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