43=-21+8x

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Solution for 43=-21+8x equation:


Simplifying
43 = -21 + 8x

Solving
43 = -21 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
43 + -8x = -21 + 8x + -8x

Combine like terms: 8x + -8x = 0
43 + -8x = -21 + 0
43 + -8x = -21

Add '-43' to each side of the equation.
43 + -43 + -8x = -21 + -43

Combine like terms: 43 + -43 = 0
0 + -8x = -21 + -43
-8x = -21 + -43

Combine like terms: -21 + -43 = -64
-8x = -64

Divide each side by '-8'.
x = 8

Simplifying
x = 8

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