0.08x+0.09(x+20)=6.9

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Solution for 0.08x+0.09(x+20)=6.9 equation: 


Simplifying
0.08x + 0.09(x + 20) = 6.9

Reorder the terms:
0.08x + 0.09(20 + x) = 6.9
0.08x + (20 * 0.09 + x * 0.09) = 6.9
0.08x + (1.8 + 0.09x) = 6.9

Reorder the terms:
1.8 + 0.08x + 0.09x = 6.9

Combine like terms: 0.08x + 0.09x = 0.17x
1.8 + 0.17x = 6.9

Solving
1.8 + 0.17x = 6.9

Solving for variable 'x'.

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

Add '-1.8' to each side of the equation.
1.8 + -1.8 + 0.17x = 6.9 + -1.8

Combine like terms: 1.8 + -1.8 = 0.0
0.0 + 0.17x = 6.9 + -1.8
0.17x = 6.9 + -1.8

Combine like terms: 6.9 + -1.8 = 5.1
0.17x = 5.1

Divide each side by '0.17'.
x = 30

Simplifying
x = 30

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