7.7=8.9-0.3x

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Solution for 7.7=8.9-0.3x equation:


Simplifying
7.7 = 8.9 + -0.3x

Solving
7.7 = 8.9 + -0.3x

Solving for variable 'x'.

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

Add '0.3x' to each side of the equation.
7.7 + 0.3x = 8.9 + -0.3x + 0.3x

Combine like terms: -0.3x + 0.3x = 0.0
7.7 + 0.3x = 8.9 + 0.0
7.7 + 0.3x = 8.9

Add '-7.7' to each side of the equation.
7.7 + -7.7 + 0.3x = 8.9 + -7.7

Combine like terms: 7.7 + -7.7 = 0.0
0.0 + 0.3x = 8.9 + -7.7
0.3x = 8.9 + -7.7

Combine like terms: 8.9 + -7.7 = 1.2
0.3x = 1.2

Divide each side by '0.3'.
x = 4

Simplifying
x = 4

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