7(1-2a)=105

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Solution for 7(1-2a)=105 equation: 


Simplifying
7(1 + -2a) = 105
(1 * 7 + -2a * 7) = 105
(7 + -14a) = 105

Solving
7 + -14a = 105

Solving for variable 'a'.

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

Add '-7' to each side of the equation.
7 + -7 + -14a = 105 + -7

Combine like terms: 7 + -7 = 0
0 + -14a = 105 + -7
-14a = 105 + -7

Combine like terms: 105 + -7 = 98
-14a = 98

Divide each side by '-14'.
a = -7

Simplifying
a = -7

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