3(x-3)=.4x+40

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Solution for 3(x-3)=.4x+40 equation:


Simplifying
3(x + -3) = 0.4x + 40

Reorder the terms:
3(-3 + x) = 0.4x + 40
(-3 * 3 + x * 3) = 0.4x + 40
(-9 + 3x) = 0.4x + 40

Reorder the terms:
-9 + 3x = 40 + 0.4x

Solving
-9 + 3x = 40 + 0.4x

Solving for variable 'x'.

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

Add '-0.4x' to each side of the equation.
-9 + 3x + -0.4x = 40 + 0.4x + -0.4x

Combine like terms: 3x + -0.4x = 2.6x
-9 + 2.6x = 40 + 0.4x + -0.4x

Combine like terms: 0.4x + -0.4x = 0.0
-9 + 2.6x = 40 + 0.0
-9 + 2.6x = 40

Add '9' to each side of the equation.
-9 + 9 + 2.6x = 40 + 9

Combine like terms: -9 + 9 = 0
0 + 2.6x = 40 + 9
2.6x = 40 + 9

Combine like terms: 40 + 9 = 49
2.6x = 49

Divide each side by '2.6'.
x = 18.84615385

Simplifying
x = 18.84615385

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