.8(18+x)=7

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Solution for .8(18+x)=7 equation:


Simplifying
0.8(18 + x) = 7
(18 * 0.8 + x * 0.8) = 7
(14.4 + 0.8x) = 7

Solving
14.4 + 0.8x = 7

Solving for variable 'x'.

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

Add '-14.4' to each side of the equation.
14.4 + -14.4 + 0.8x = 7 + -14.4

Combine like terms: 14.4 + -14.4 = 0.0
0.0 + 0.8x = 7 + -14.4
0.8x = 7 + -14.4

Combine like terms: 7 + -14.4 = -7.4
0.8x = -7.4

Divide each side by '0.8'.
x = -9.25

Simplifying
x = -9.25

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