90=5[f-70]

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Solution for 90=5[f-70] equation:


Simplifying
90 = 5[f + -70]

Reorder the terms:
90 = 5[-70 + f]
90 = [-70 * 5 + f * 5]
90 = [-350 + 5f]

Solving
90 = -350 + 5f

Solving for variable 'f'.

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

Add '-5f' to each side of the equation.
90 + -5f = -350 + 5f + -5f

Combine like terms: 5f + -5f = 0
90 + -5f = -350 + 0
90 + -5f = -350

Add '-90' to each side of the equation.
90 + -90 + -5f = -350 + -90

Combine like terms: 90 + -90 = 0
0 + -5f = -350 + -90
-5f = -350 + -90

Combine like terms: -350 + -90 = -440
-5f = -440

Divide each side by '-5'.
f = 88

Simplifying
f = 88

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