81x-2(x-1)=90

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Solution for 81x-2(x-1)=90 equation:


Simplifying
81x + -2(x + -1) = 90

Reorder the terms:
81x + -2(-1 + x) = 90
81x + (-1 * -2 + x * -2) = 90
81x + (2 + -2x) = 90

Reorder the terms:
2 + 81x + -2x = 90

Combine like terms: 81x + -2x = 79x
2 + 79x = 90

Solving
2 + 79x = 90

Solving for variable 'x'.

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

Add '-2' to each side of the equation.
2 + -2 + 79x = 90 + -2

Combine like terms: 2 + -2 = 0
0 + 79x = 90 + -2
79x = 90 + -2

Combine like terms: 90 + -2 = 88
79x = 88

Divide each side by '79'.
x = 1.113924051

Simplifying
x = 1.113924051

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