5(8r-4)=7(8+3r)

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Solution for 5(8r-4)=7(8+3r) equation:


Simplifying
5(8r + -4) = 7(8 + 3r)

Reorder the terms:
5(-4 + 8r) = 7(8 + 3r)
(-4 * 5 + 8r * 5) = 7(8 + 3r)
(-20 + 40r) = 7(8 + 3r)
-20 + 40r = (8 * 7 + 3r * 7)
-20 + 40r = (56 + 21r)

Solving
-20 + 40r = 56 + 21r

Solving for variable 'r'.

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

Add '-21r' to each side of the equation.
-20 + 40r + -21r = 56 + 21r + -21r

Combine like terms: 40r + -21r = 19r
-20 + 19r = 56 + 21r + -21r

Combine like terms: 21r + -21r = 0
-20 + 19r = 56 + 0
-20 + 19r = 56

Add '20' to each side of the equation.
-20 + 20 + 19r = 56 + 20

Combine like terms: -20 + 20 = 0
0 + 19r = 56 + 20
19r = 56 + 20

Combine like terms: 56 + 20 = 76
19r = 76

Divide each side by '19'.
r = 4

Simplifying
r = 4

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