(8+4)x(2+1)-18-8x(4-2)=

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Solution for (8+4)x(2+1)-18-8x(4-2)= equation:


Simplifying
(8 + 4) * x(2 + 1) + -18 + -8x(4 + -2) = 0

Combine like terms: 8 + 4 = 12
(12) * x(2 + 1) + -18 + -8x(4 + -2) = 0

Combine like terms: 2 + 1 = 3
12x(3) + -18 + -8x(4 + -2) = 0

Reorder the terms for easier multiplication:
12 * 3x + -18 + -8x(4 + -2) = 0

Multiply 12 * 3
36x + -18 + -8x(4 + -2) = 0

Combine like terms: 4 + -2 = 2
36x + -18 + -8x(2) = 0

Reorder the terms for easier multiplication:
36x + -18 + -8 * 2x = 0

Multiply -8 * 2
36x + -18 + -16x = 0

Reorder the terms:
-18 + 36x + -16x = 0

Combine like terms: 36x + -16x = 20x
-18 + 20x = 0

Solving
-18 + 20x = 0

Solving for variable 'x'.

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

Add '18' to each side of the equation.
-18 + 18 + 20x = 0 + 18

Combine like terms: -18 + 18 = 0
0 + 20x = 0 + 18
20x = 0 + 18

Combine like terms: 0 + 18 = 18
20x = 18

Divide each side by '20'.
x = 0.9

Simplifying
x = 0.9

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