2(x+4)+3=7x+21

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Solution for 2(x+4)+3=7x+21 equation:


Simplifying
2(x + 4) + 3 = 7x + 21

Reorder the terms:
2(4 + x) + 3 = 7x + 21
(4 * 2 + x * 2) + 3 = 7x + 21
(8 + 2x) + 3 = 7x + 21

Reorder the terms:
8 + 3 + 2x = 7x + 21

Combine like terms: 8 + 3 = 11
11 + 2x = 7x + 21

Reorder the terms:
11 + 2x = 21 + 7x

Solving
11 + 2x = 21 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
11 + 2x + -7x = 21 + 7x + -7x

Combine like terms: 2x + -7x = -5x
11 + -5x = 21 + 7x + -7x

Combine like terms: 7x + -7x = 0
11 + -5x = 21 + 0
11 + -5x = 21

Add '-11' to each side of the equation.
11 + -11 + -5x = 21 + -11

Combine like terms: 11 + -11 = 0
0 + -5x = 21 + -11
-5x = 21 + -11

Combine like terms: 21 + -11 = 10
-5x = 10

Divide each side by '-5'.
x = -2

Simplifying
x = -2

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