43=31-4(x-1)

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Solution for 43=31-4(x-1) equation:


Simplifying
43 = 31 + -4(x + -1)

Reorder the terms:
43 = 31 + -4(-1 + x)
43 = 31 + (-1 * -4 + x * -4)
43 = 31 + (4 + -4x)

Combine like terms: 31 + 4 = 35
43 = 35 + -4x

Solving
43 = 35 + -4x

Solving for variable 'x'.

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

Add '4x' to each side of the equation.
43 + 4x = 35 + -4x + 4x

Combine like terms: -4x + 4x = 0
43 + 4x = 35 + 0
43 + 4x = 35

Add '-43' to each side of the equation.
43 + -43 + 4x = 35 + -43

Combine like terms: 43 + -43 = 0
0 + 4x = 35 + -43
4x = 35 + -43

Combine like terms: 35 + -43 = -8
4x = -8

Divide each side by '4'.
x = -2

Simplifying
x = -2

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