7x+(5-x).3=12+15

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Solution for 7x+(5-x).3=12+15 equation: 


Simplifying
7x + (5 + -1x) * 0.3 = 12 + 15

Reorder the terms for easier multiplication:
7x + 0.3(5 + -1x) = 12 + 15
7x + (5 * 0.3 + -1x * 0.3) = 12 + 15
7x + (1.5 + -0.3x) = 12 + 15

Reorder the terms:
1.5 + 7x + -0.3x = 12 + 15

Combine like terms: 7x + -0.3x = 6.7x
1.5 + 6.7x = 12 + 15

Combine like terms: 12 + 15 = 27
1.5 + 6.7x = 27

Solving
1.5 + 6.7x = 27

Solving for variable 'x'.

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

Add '-1.5' to each side of the equation.
1.5 + -1.5 + 6.7x = 27 + -1.5

Combine like terms: 1.5 + -1.5 = 0.0
0.0 + 6.7x = 27 + -1.5
6.7x = 27 + -1.5

Combine like terms: 27 + -1.5 = 25.5
6.7x = 25.5

Divide each side by '6.7'.
x = 3.805970149

Simplifying
x = 3.805970149

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