84=7(8+x)

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Solution for 84=7(8+x) equation:


Simplifying
84 = 7(8 + x)
84 = (8 * 7 + x * 7)
84 = (56 + 7x)

Solving
84 = 56 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
84 + -7x = 56 + 7x + -7x

Combine like terms: 7x + -7x = 0
84 + -7x = 56 + 0
84 + -7x = 56

Add '-84' to each side of the equation.
84 + -84 + -7x = 56 + -84

Combine like terms: 84 + -84 = 0
0 + -7x = 56 + -84
-7x = 56 + -84

Combine like terms: 56 + -84 = -28
-7x = -28

Divide each side by '-7'.
x = 4

Simplifying
x = 4

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