0.7r+1.9+0.1r=5.5-0.4r

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Solution for 0.7r+1.9+0.1r=5.5-0.4r equation:


Simplifying
0.7r + 1.9 + 0.1r = 5.5 + -0.4r

Reorder the terms:
1.9 + 0.7r + 0.1r = 5.5 + -0.4r

Combine like terms: 0.7r + 0.1r = 0.8r
1.9 + 0.8r = 5.5 + -0.4r

Solving
1.9 + 0.8r = 5.5 + -0.4r

Solving for variable 'r'.

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

Add '0.4r' to each side of the equation.
1.9 + 0.8r + 0.4r = 5.5 + -0.4r + 0.4r

Combine like terms: 0.8r + 0.4r = 1.2r
1.9 + 1.2r = 5.5 + -0.4r + 0.4r

Combine like terms: -0.4r + 0.4r = 0.0
1.9 + 1.2r = 5.5 + 0.0
1.9 + 1.2r = 5.5

Add '-1.9' to each side of the equation.
1.9 + -1.9 + 1.2r = 5.5 + -1.9

Combine like terms: 1.9 + -1.9 = 0.0
0.0 + 1.2r = 5.5 + -1.9
1.2r = 5.5 + -1.9

Combine like terms: 5.5 + -1.9 = 3.6
1.2r = 3.6

Divide each side by '1.2'.
r = 3

Simplifying
r = 3

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