4(2r+5)-3(r-2)=

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Solution for 4(2r+5)-3(r-2)= equation:


Simplifying
4(2r + 5) + -3(r + -2) = 0

Reorder the terms:
4(5 + 2r) + -3(r + -2) = 0
(5 * 4 + 2r * 4) + -3(r + -2) = 0
(20 + 8r) + -3(r + -2) = 0

Reorder the terms:
20 + 8r + -3(-2 + r) = 0
20 + 8r + (-2 * -3 + r * -3) = 0
20 + 8r + (6 + -3r) = 0

Reorder the terms:
20 + 6 + 8r + -3r = 0

Combine like terms: 20 + 6 = 26
26 + 8r + -3r = 0

Combine like terms: 8r + -3r = 5r
26 + 5r = 0

Solving
26 + 5r = 0

Solving for variable 'r'.

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

Add '-26' to each side of the equation.
26 + -26 + 5r = 0 + -26

Combine like terms: 26 + -26 = 0
0 + 5r = 0 + -26
5r = 0 + -26

Combine like terms: 0 + -26 = -26
5r = -26

Divide each side by '5'.
r = -5.2

Simplifying
r = -5.2

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