3(x+5)=21-4(2x-5)

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Solution for 3(x+5)=21-4(2x-5) equation:


Simplifying
3(x + 5) = 21 + -4(2x + -5)

Reorder the terms:
3(5 + x) = 21 + -4(2x + -5)
(5 * 3 + x * 3) = 21 + -4(2x + -5)
(15 + 3x) = 21 + -4(2x + -5)

Reorder the terms:
15 + 3x = 21 + -4(-5 + 2x)
15 + 3x = 21 + (-5 * -4 + 2x * -4)
15 + 3x = 21 + (20 + -8x)

Combine like terms: 21 + 20 = 41
15 + 3x = 41 + -8x

Solving
15 + 3x = 41 + -8x

Solving for variable 'x'.

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

Add '8x' to each side of the equation.
15 + 3x + 8x = 41 + -8x + 8x

Combine like terms: 3x + 8x = 11x
15 + 11x = 41 + -8x + 8x

Combine like terms: -8x + 8x = 0
15 + 11x = 41 + 0
15 + 11x = 41

Add '-15' to each side of the equation.
15 + -15 + 11x = 41 + -15

Combine like terms: 15 + -15 = 0
0 + 11x = 41 + -15
11x = 41 + -15

Combine like terms: 41 + -15 = 26
11x = 26

Divide each side by '11'.
x = 2.363636364

Simplifying
x = 2.363636364

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