90=1.6(x-1985)+55

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Solution for 90=1.6(x-1985)+55 equation: 


Simplifying
90 = 1.6(x + -1985) + 55

Reorder the terms:
90 = 1.6(-1985 + x) + 55
90 = (-1985 * 1.6 + x * 1.6) + 55
90 = (-3176 + 1.6x) + 55

Reorder the terms:
90 = -3176 + 55 + 1.6x

Combine like terms: -3176 + 55 = -3121
90 = -3121 + 1.6x

Solving
90 = -3121 + 1.6x

Solving for variable 'x'.

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

Add '-1.6x' to each side of the equation.
90 + -1.6x = -3121 + 1.6x + -1.6x

Combine like terms: 1.6x + -1.6x = 0.0
90 + -1.6x = -3121 + 0.0
90 + -1.6x = -3121

Add '-90' to each side of the equation.
90 + -90 + -1.6x = -3121 + -90

Combine like terms: 90 + -90 = 0
0 + -1.6x = -3121 + -90
-1.6x = -3121 + -90

Combine like terms: -3121 + -90 = -3211
-1.6x = -3211

Divide each side by '-1.6'.
x = 2006.875

Simplifying
x = 2006.875

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