-0.9(x+1)=0.1(x+9)

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Solution for -0.9(x+1)=0.1(x+9) equation:


Simplifying
-0.9(x + 1) = 0.1(x + 9)

Reorder the terms:
-0.9(1 + x) = 0.1(x + 9)
(1 * -0.9 + x * -0.9) = 0.1(x + 9)
(-0.9 + -0.9x) = 0.1(x + 9)

Reorder the terms:
-0.9 + -0.9x = 0.1(9 + x)
-0.9 + -0.9x = (9 * 0.1 + x * 0.1)
-0.9 + -0.9x = (0.9 + 0.1x)

Solving
-0.9 + -0.9x = 0.9 + 0.1x

Solving for variable 'x'.

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

Add '-0.1x' to each side of the equation.
-0.9 + -0.9x + -0.1x = 0.9 + 0.1x + -0.1x

Combine like terms: -0.9x + -0.1x = -1x
-0.9 + -1x = 0.9 + 0.1x + -0.1x

Combine like terms: 0.1x + -0.1x = 0.0
-0.9 + -1x = 0.9 + 0.0
-0.9 + -1x = 0.9

Add '0.9' to each side of the equation.
-0.9 + 0.9 + -1x = 0.9 + 0.9

Combine like terms: -0.9 + 0.9 = 0.0
0.0 + -1x = 0.9 + 0.9
-1x = 0.9 + 0.9

Combine like terms: 0.9 + 0.9 = 1.8
-1x = 1.8

Divide each side by '-1'.
x = -1.8

Simplifying
x = -1.8

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