5(r-5)*2+8=143

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Solution for 5(r-5)*2+8=143 equation:


Simplifying
5(r + -5) * 2 + 8 = 143

Reorder the terms:
5(-5 + r) * 2 + 8 = 143

Reorder the terms for easier multiplication:
5 * 2(-5 + r) + 8 = 143

Multiply 5 * 2
10(-5 + r) + 8 = 143
(-5 * 10 + r * 10) + 8 = 143
(-50 + 10r) + 8 = 143

Reorder the terms:
-50 + 8 + 10r = 143

Combine like terms: -50 + 8 = -42
-42 + 10r = 143

Solving
-42 + 10r = 143

Solving for variable 'r'.

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

Add '42' to each side of the equation.
-42 + 42 + 10r = 143 + 42

Combine like terms: -42 + 42 = 0
0 + 10r = 143 + 42
10r = 143 + 42

Combine like terms: 143 + 42 = 185
10r = 185

Divide each side by '10'.
r = 18.5

Simplifying
r = 18.5

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