7x-2(a-1)=17

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Solution for 7x-2(a-1)=17 equation:


Simplifying
7x + -2(a + -1) = 17

Reorder the terms:
7x + -2(-1 + a) = 17
7x + (-1 * -2 + a * -2) = 17
7x + (2 + -2a) = 17

Reorder the terms:
2 + -2a + 7x = 17

Solving
2 + -2a + 7x = 17

Solving for variable 'a'.

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

Add '-2' to each side of the equation.
2 + -2a + -2 + 7x = 17 + -2

Reorder the terms:
2 + -2 + -2a + 7x = 17 + -2

Combine like terms: 2 + -2 = 0
0 + -2a + 7x = 17 + -2
-2a + 7x = 17 + -2

Combine like terms: 17 + -2 = 15
-2a + 7x = 15

Add '-7x' to each side of the equation.
-2a + 7x + -7x = 15 + -7x

Combine like terms: 7x + -7x = 0
-2a + 0 = 15 + -7x
-2a = 15 + -7x

Divide each side by '-2'.
a = -7.5 + 3.5x

Simplifying
a = -7.5 + 3.5x

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