4-2a=3(a-7)

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


Simplifying
4 + -2a = 3(a + -7)

Reorder the terms:
4 + -2a = 3(-7 + a)
4 + -2a = (-7 * 3 + a * 3)
4 + -2a = (-21 + 3a)

Solving
4 + -2a = -21 + 3a

Solving for variable 'a'.

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

Add '-3a' to each side of the equation.
4 + -2a + -3a = -21 + 3a + -3a

Combine like terms: -2a + -3a = -5a
4 + -5a = -21 + 3a + -3a

Combine like terms: 3a + -3a = 0
4 + -5a = -21 + 0
4 + -5a = -21

Add '-4' to each side of the equation.
4 + -4 + -5a = -21 + -4

Combine like terms: 4 + -4 = 0
0 + -5a = -21 + -4
-5a = -21 + -4

Combine like terms: -21 + -4 = -25
-5a = -25

Divide each side by '-5'.
a = 5

Simplifying
a = 5

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