3(a-4)=7a-4

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


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

Reorder the terms:
3(-4 + a) = 7a + -4
(-4 * 3 + a * 3) = 7a + -4
(-12 + 3a) = 7a + -4

Reorder the terms:
-12 + 3a = -4 + 7a

Solving
-12 + 3a = -4 + 7a

Solving for variable 'a'.

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

Add '-7a' to each side of the equation.
-12 + 3a + -7a = -4 + 7a + -7a

Combine like terms: 3a + -7a = -4a
-12 + -4a = -4 + 7a + -7a

Combine like terms: 7a + -7a = 0
-12 + -4a = -4 + 0
-12 + -4a = -4

Add '12' to each side of the equation.
-12 + 12 + -4a = -4 + 12

Combine like terms: -12 + 12 = 0
0 + -4a = -4 + 12
-4a = -4 + 12

Combine like terms: -4 + 12 = 8
-4a = 8

Divide each side by '-4'.
a = -2

Simplifying
a = -2

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