.4x+.7x-1=8

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Solution for .4x+.7x-1=8 equation:


Simplifying
0.4x + 0.7x + -1 = 8

Reorder the terms:
-1 + 0.4x + 0.7x = 8

Combine like terms: 0.4x + 0.7x = 1.1x
-1 + 1.1x = 8

Solving
-1 + 1.1x = 8

Solving for variable 'x'.

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

Add '1' to each side of the equation.
-1 + 1 + 1.1x = 8 + 1

Combine like terms: -1 + 1 = 0
0 + 1.1x = 8 + 1
1.1x = 8 + 1

Combine like terms: 8 + 1 = 9
1.1x = 9

Divide each side by '1.1'.
x = 8.181818182

Simplifying
x = 8.181818182

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