0.7(x+30)+0.4x=8.5

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Solution for 0.7(x+30)+0.4x=8.5 equation:


Simplifying
0.7(x + 30) + 0.4x = 8.5

Reorder the terms:
0.7(30 + x) + 0.4x = 8.5
(30 * 0.7 + x * 0.7) + 0.4x = 8.5
(21 + 0.7x) + 0.4x = 8.5

Combine like terms: 0.7x + 0.4x = 1.1x
21 + 1.1x = 8.5

Solving
21 + 1.1x = 8.5

Solving for variable 'x'.

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

Add '-21' to each side of the equation.
21 + -21 + 1.1x = 8.5 + -21

Combine like terms: 21 + -21 = 0
0 + 1.1x = 8.5 + -21
1.1x = 8.5 + -21

Combine like terms: 8.5 + -21 = -12.5
1.1x = -12.5

Divide each side by '1.1'.
x = -11.36363636

Simplifying
x = -11.36363636

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