7.0=2(r-3)+4

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Solution for 7.0=2(r-3)+4 equation:


Simplifying
7.0 = 2(r + -3) + 4

Reorder the terms:
7.0 = 2(-3 + r) + 4
7.0 = (-3 * 2 + r * 2) + 4
7.0 = (-6 + 2r) + 4

Reorder the terms:
7.0 = -6 + 4 + 2r

Combine like terms: -6 + 4 = -2
7.0 = -2 + 2r

Solving
7.0 = -2 + 2r

Solving for variable 'r'.

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

Add '-2r' to each side of the equation.
7.0 + -2r = -2 + 2r + -2r

Combine like terms: 2r + -2r = 0
7.0 + -2r = -2 + 0
7.0 + -2r = -2

Add '-7.0' to each side of the equation.
7.0 + -7.0 + -2r = -2 + -7.0

Combine like terms: 7.0 + -7.0 = 0.0
0.0 + -2r = -2 + -7.0
-2r = -2 + -7.0

Combine like terms: -2 + -7.0 = -9
-2r = -9

Divide each side by '-2'.
r = 4.5

Simplifying
r = 4.5

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