.3(x+10)+.7x=18

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Solution for .3(x+10)+.7x=18 equation:


Simplifying
0.3(x + 10) + 0.7x = 18

Reorder the terms:
0.3(10 + x) + 0.7x = 18
(10 * 0.3 + x * 0.3) + 0.7x = 18
(3 + 0.3x) + 0.7x = 18

Combine like terms: 0.3x + 0.7x = 1x
3 + 1x = 18

Solving
3 + 1x = 18

Solving for variable 'x'.

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

Add '-3' to each side of the equation.
3 + -3 + 1x = 18 + -3

Combine like terms: 3 + -3 = 0
0 + 1x = 18 + -3
1x = 18 + -3

Combine like terms: 18 + -3 = 15
1x = 15

Divide each side by '1'.
x = 15

Simplifying
x = 15

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