0.1r+0.2(x-7)=0.142

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Solution for 0.1r+0.2(x-7)=0.142 equation: 


Simplifying
0.1r + 0.2(x + -7) = 0.142

Reorder the terms:
0.1r + 0.2(-7 + x) = 0.142
0.1r + (-7 * 0.2 + x * 0.2) = 0.142
0.1r + (-1.4 + 0.2x) = 0.142

Reorder the terms:
-1.4 + 0.1r + 0.2x = 0.142

Solving
-1.4 + 0.1r + 0.2x = 0.142

Solving for variable 'r'.

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

Add '1.4' to each side of the equation.
-1.4 + 0.1r + 1.4 + 0.2x = 0.142 + 1.4

Reorder the terms:
-1.4 + 1.4 + 0.1r + 0.2x = 0.142 + 1.4

Combine like terms: -1.4 + 1.4 = 0.0
0.0 + 0.1r + 0.2x = 0.142 + 1.4
0.1r + 0.2x = 0.142 + 1.4

Combine like terms: 0.142 + 1.4 = 1.542
0.1r + 0.2x = 1.542

Add '-0.2x' to each side of the equation.
0.1r + 0.2x + -0.2x = 1.542 + -0.2x

Combine like terms: 0.2x + -0.2x = 0.0
0.1r + 0.0 = 1.542 + -0.2x
0.1r = 1.542 + -0.2x

Divide each side by '0.1'.
r = 15.42 + -2x

Simplifying
r = 15.42 + -2x

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