-x+4(21-8x)=18

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Solution for -x+4(21-8x)=18 equation:


Simplifying
-1x + 4(21 + -8x) = 18
-1x + (21 * 4 + -8x * 4) = 18
-1x + (84 + -32x) = 18

Reorder the terms:
84 + -1x + -32x = 18

Combine like terms: -1x + -32x = -33x
84 + -33x = 18

Solving
84 + -33x = 18

Solving for variable 'x'.

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

Add '-84' to each side of the equation.
84 + -84 + -33x = 18 + -84

Combine like terms: 84 + -84 = 0
0 + -33x = 18 + -84
-33x = 18 + -84

Combine like terms: 18 + -84 = -66
-33x = -66

Divide each side by '-33'.
x = 2

Simplifying
x = 2

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