2(x-1)+3(2x+5)=21

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Solution for 2(x-1)+3(2x+5)=21 equation:


Simplifying
2(x + -1) + 3(2x + 5) = 21

Reorder the terms:
2(-1 + x) + 3(2x + 5) = 21
(-1 * 2 + x * 2) + 3(2x + 5) = 21
(-2 + 2x) + 3(2x + 5) = 21

Reorder the terms:
-2 + 2x + 3(5 + 2x) = 21
-2 + 2x + (5 * 3 + 2x * 3) = 21
-2 + 2x + (15 + 6x) = 21

Reorder the terms:
-2 + 15 + 2x + 6x = 21

Combine like terms: -2 + 15 = 13
13 + 2x + 6x = 21

Combine like terms: 2x + 6x = 8x
13 + 8x = 21

Solving
13 + 8x = 21

Solving for variable 'x'.

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

Add '-13' to each side of the equation.
13 + -13 + 8x = 21 + -13

Combine like terms: 13 + -13 = 0
0 + 8x = 21 + -13
8x = 21 + -13

Combine like terms: 21 + -13 = 8
8x = 8

Divide each side by '8'.
x = 1

Simplifying
x = 1

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