2=7(1)+b

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Solution for 2=7(1)+b equation: 


Simplifying
2 = 7(1) + b

Multiply 7 * 1
2 = 7 + b

Solving
2 = 7 + b

Solving for variable 'b'.

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

Add '-1b' to each side of the equation.
2 + -1b = 7 + b + -1b

Combine like terms: b + -1b = 0
2 + -1b = 7 + 0
2 + -1b = 7

Add '-2' to each side of the equation.
2 + -2 + -1b = 7 + -2

Combine like terms: 2 + -2 = 0
0 + -1b = 7 + -2
-1b = 7 + -2

Combine like terms: 7 + -2 = 5
-1b = 5

Divide each side by '-1'.
b = -5

Simplifying
b = -5

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