4(10r-8)+4=

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Solution for 4(10r-8)+4= equation:


Simplifying
4(10r + -8) + 4 = 0

Reorder the terms:
4(-8 + 10r) + 4 = 0
(-8 * 4 + 10r * 4) + 4 = 0
(-32 + 40r) + 4 = 0

Reorder the terms:
-32 + 4 + 40r = 0

Combine like terms: -32 + 4 = -28
-28 + 40r = 0

Solving
-28 + 40r = 0

Solving for variable 'r'.

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

Add '28' to each side of the equation.
-28 + 28 + 40r = 0 + 28

Combine like terms: -28 + 28 = 0
0 + 40r = 0 + 28
40r = 0 + 28

Combine like terms: 0 + 28 = 28
40r = 28

Divide each side by '40'.
r = 0.7

Simplifying
r = 0.7

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