145=5(1-7b)

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Solution for 145=5(1-7b) equation:


Simplifying
145 = 5(1 + -7b)
145 = (1 * 5 + -7b * 5)
145 = (5 + -35b)

Solving
145 = 5 + -35b

Solving for variable 'b'.

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

Add '35b' to each side of the equation.
145 + 35b = 5 + -35b + 35b

Combine like terms: -35b + 35b = 0
145 + 35b = 5 + 0
145 + 35b = 5

Add '-145' to each side of the equation.
145 + -145 + 35b = 5 + -145

Combine like terms: 145 + -145 = 0
0 + 35b = 5 + -145
35b = 5 + -145

Combine like terms: 5 + -145 = -140
35b = -140

Divide each side by '35'.
b = -4

Simplifying
b = -4

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