3=7(4-2a)-6a

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Solution for 3=7(4-2a)-6a equation:


Simplifying
3 = 7(4 + -2a) + -6a
3 = (4 * 7 + -2a * 7) + -6a
3 = (28 + -14a) + -6a

Combine like terms: -14a + -6a = -20a
3 = 28 + -20a

Solving
3 = 28 + -20a

Solving for variable 'a'.

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

Add '20a' to each side of the equation.
3 + 20a = 28 + -20a + 20a

Combine like terms: -20a + 20a = 0
3 + 20a = 28 + 0
3 + 20a = 28

Add '-3' to each side of the equation.
3 + -3 + 20a = 28 + -3

Combine like terms: 3 + -3 = 0
0 + 20a = 28 + -3
20a = 28 + -3

Combine like terms: 28 + -3 = 25
20a = 25

Divide each side by '20'.
a = 1.25

Simplifying
a = 1.25

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