-38+3r=8(4r+7)-7

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Solution for -38+3r=8(4r+7)-7 equation:


Simplifying
-38 + 3r = 8(4r + 7) + -7

Reorder the terms:
-38 + 3r = 8(7 + 4r) + -7
-38 + 3r = (7 * 8 + 4r * 8) + -7
-38 + 3r = (56 + 32r) + -7

Reorder the terms:
-38 + 3r = 56 + -7 + 32r

Combine like terms: 56 + -7 = 49
-38 + 3r = 49 + 32r

Solving
-38 + 3r = 49 + 32r

Solving for variable 'r'.

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

Add '-32r' to each side of the equation.
-38 + 3r + -32r = 49 + 32r + -32r

Combine like terms: 3r + -32r = -29r
-38 + -29r = 49 + 32r + -32r

Combine like terms: 32r + -32r = 0
-38 + -29r = 49 + 0
-38 + -29r = 49

Add '38' to each side of the equation.
-38 + 38 + -29r = 49 + 38

Combine like terms: -38 + 38 = 0
0 + -29r = 49 + 38
-29r = 49 + 38

Combine like terms: 49 + 38 = 87
-29r = 87

Divide each side by '-29'.
r = -3

Simplifying
r = -3

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