7(7-3b)+8=225

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Solution for 7(7-3b)+8=225 equation:


Simplifying
7(7 + -3b) + 8 = 225
(7 * 7 + -3b * 7) + 8 = 225
(49 + -21b) + 8 = 225

Reorder the terms:
49 + 8 + -21b = 225

Combine like terms: 49 + 8 = 57
57 + -21b = 225

Solving
57 + -21b = 225

Solving for variable 'b'.

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

Add '-57' to each side of the equation.
57 + -57 + -21b = 225 + -57

Combine like terms: 57 + -57 = 0
0 + -21b = 225 + -57
-21b = 225 + -57

Combine like terms: 225 + -57 = 168
-21b = 168

Divide each side by '-21'.
b = -8

Simplifying
b = -8

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