320=(1+7x)(-5)

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Solution for 320=(1+7x)(-5) equation:


Simplifying
320 = (1 + 7x)(-5)

Reorder the terms for easier multiplication:
320 = -5(1 + 7x)
320 = (1 * -5 + 7x * -5)
320 = (-5 + -35x)

Solving
320 = -5 + -35x

Solving for variable 'x'.

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

Add '35x' to each side of the equation.
320 + 35x = -5 + -35x + 35x

Combine like terms: -35x + 35x = 0
320 + 35x = -5 + 0
320 + 35x = -5

Add '-320' to each side of the equation.
320 + -320 + 35x = -5 + -320

Combine like terms: 320 + -320 = 0
0 + 35x = -5 + -320
35x = -5 + -320

Combine like terms: -5 + -320 = -325
35x = -325

Divide each side by '35'.
x = -9.285714286

Simplifying
x = -9.285714286

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