8(2x-4)=21

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Solution for 8(2x-4)=21 equation:


Simplifying
8(2x + -4) = 21

Reorder the terms:
8(-4 + 2x) = 21
(-4 * 8 + 2x * 8) = 21
(-32 + 16x) = 21

Solving
-32 + 16x = 21

Solving for variable 'x'.

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

Add '32' to each side of the equation.
-32 + 32 + 16x = 21 + 32

Combine like terms: -32 + 32 = 0
0 + 16x = 21 + 32
16x = 21 + 32

Combine like terms: 21 + 32 = 53
16x = 53

Divide each side by '16'.
x = 3.3125

Simplifying
x = 3.3125

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