0.3(4+2y)-5x=7

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Solution for 0.3(4+2y)-5x=7 equation: 


Simplifying
0.3(4 + 2y) + -5x = 7
(4 * 0.3 + 2y * 0.3) + -5x = 7
(1.2 + 0.6y) + -5x = 7

Reorder the terms:
1.2 + -5x + 0.6y = 7

Solving
1.2 + -5x + 0.6y = 7

Solving for variable 'x'.

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

Add '-1.2' to each side of the equation.
1.2 + -5x + -1.2 + 0.6y = 7 + -1.2

Reorder the terms:
1.2 + -1.2 + -5x + 0.6y = 7 + -1.2

Combine like terms: 1.2 + -1.2 = 0.0
0.0 + -5x + 0.6y = 7 + -1.2
-5x + 0.6y = 7 + -1.2

Combine like terms: 7 + -1.2 = 5.8
-5x + 0.6y = 5.8

Add '-0.6y' to each side of the equation.
-5x + 0.6y + -0.6y = 5.8 + -0.6y

Combine like terms: 0.6y + -0.6y = 0.0
-5x + 0.0 = 5.8 + -0.6y
-5x = 5.8 + -0.6y

Divide each side by '-5'.
x = -1.16 + 0.12y

Simplifying
x = -1.16 + 0.12y

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