8x-7x-16-3x=-21

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Solution for 8x-7x-16-3x=-21 equation:


Simplifying
8x + -7x + -16 + -3x = -21

Reorder the terms:
-16 + 8x + -7x + -3x = -21

Combine like terms: 8x + -7x = 1x
-16 + 1x + -3x = -21

Combine like terms: 1x + -3x = -2x
-16 + -2x = -21

Solving
-16 + -2x = -21

Solving for variable 'x'.

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

Add '16' to each side of the equation.
-16 + 16 + -2x = -21 + 16

Combine like terms: -16 + 16 = 0
0 + -2x = -21 + 16
-2x = -21 + 16

Combine like terms: -21 + 16 = -5
-2x = -5

Divide each side by '-2'.
x = 2.5

Simplifying
x = 2.5

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