0.2+.05(20-x)=.10(7)

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Solution for 0.2+.05(20-x)=.10(7) equation:


Simplifying
0.2 + 0.05(20 + -1x) = 0.10(7)
0.2 + (20 * 0.05 + -1x * 0.05) = 0.10(7)
0.2 + (1 + -0.05x) = 0.10(7)

Combine like terms: 0.2 + 1 = 1.2
1.2 + -0.05x = 0.10(7)

Multiply 0.10 * 7
1.2 + -0.05x = 0.7

Solving
1.2 + -0.05x = 0.7

Solving for variable 'x'.

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

Add '-1.2' to each side of the equation.
1.2 + -1.2 + -0.05x = 0.7 + -1.2

Combine like terms: 1.2 + -1.2 = 0.0
0.0 + -0.05x = 0.7 + -1.2
-0.05x = 0.7 + -1.2

Combine like terms: 0.7 + -1.2 = -0.5
-0.05x = -0.5

Divide each side by '-0.05'.
x = 10

Simplifying
x = 10

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