0.7(x+30)+0.1x=37

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Solution for 0.7(x+30)+0.1x=37 equation: 


Simplifying
0.7(x + 30) + 0.1x = 37

Reorder the terms:
0.7(30 + x) + 0.1x = 37
(30 * 0.7 + x * 0.7) + 0.1x = 37
(21 + 0.7x) + 0.1x = 37

Combine like terms: 0.7x + 0.1x = 0.8x
21 + 0.8x = 37

Solving
21 + 0.8x = 37

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 + 0.8x = 37 + -21

Combine like terms: 21 + -21 = 0
0 + 0.8x = 37 + -21
0.8x = 37 + -21

Combine like terms: 37 + -21 = 16
0.8x = 16

Divide each side by '0.8'.
x = 20

Simplifying
x = 20

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