72+6(x-1)=90

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Solution for 72+6(x-1)=90 equation:


Simplifying
72 + 6(x + -1) = 90

Reorder the terms:
72 + 6(-1 + x) = 90
72 + (-1 * 6 + x * 6) = 90
72 + (-6 + 6x) = 90

Combine like terms: 72 + -6 = 66
66 + 6x = 90

Solving
66 + 6x = 90

Solving for variable 'x'.

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

Add '-66' to each side of the equation.
66 + -66 + 6x = 90 + -66

Combine like terms: 66 + -66 = 0
0 + 6x = 90 + -66
6x = 90 + -66

Combine like terms: 90 + -66 = 24
6x = 24

Divide each side by '6'.
x = 4

Simplifying
x = 4

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