3(x+4)+21(x-4)=14

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Solution for 3(x+4)+21(x-4)=14 equation:


Simplifying
3(x + 4) + 21(x + -4) = 14

Reorder the terms:
3(4 + x) + 21(x + -4) = 14
(4 * 3 + x * 3) + 21(x + -4) = 14
(12 + 3x) + 21(x + -4) = 14

Reorder the terms:
12 + 3x + 21(-4 + x) = 14
12 + 3x + (-4 * 21 + x * 21) = 14
12 + 3x + (-84 + 21x) = 14

Reorder the terms:
12 + -84 + 3x + 21x = 14

Combine like terms: 12 + -84 = -72
-72 + 3x + 21x = 14

Combine like terms: 3x + 21x = 24x
-72 + 24x = 14

Solving
-72 + 24x = 14

Solving for variable 'x'.

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

Add '72' to each side of the equation.
-72 + 72 + 24x = 14 + 72

Combine like terms: -72 + 72 = 0
0 + 24x = 14 + 72
24x = 14 + 72

Combine like terms: 14 + 72 = 86
24x = 86

Divide each side by '24'.
x = 3.583333333

Simplifying
x = 3.583333333

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