.7=r+.4

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Solution for .7=r+.4 equation:


Simplifying
0.7 = r + 0.4

Reorder the terms:
0.7 = 0.4 + r

Solving
0.7 = 0.4 + r

Solving for variable 'r'.

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

Add '-1r' to each side of the equation.
0.7 + -1r = 0.4 + r + -1r

Combine like terms: r + -1r = 0
0.7 + -1r = 0.4 + 0
0.7 + -1r = 0.4

Add '-0.7' to each side of the equation.
0.7 + -0.7 + -1r = 0.4 + -0.7

Combine like terms: 0.7 + -0.7 = 0.0
0.0 + -1r = 0.4 + -0.7
-1r = 0.4 + -0.7

Combine like terms: 0.4 + -0.7 = -0.3
-1r = -0.3

Divide each side by '-1'.
r = 0.3

Simplifying
r = 0.3

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