3a-2=7a-4

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


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

Reorder the terms:
-2 + 3a = 7a + -4

Reorder the terms:
-2 + 3a = -4 + 7a

Solving
-2 + 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.
-2 + 3a + -7a = -4 + 7a + -7a

Combine like terms: 3a + -7a = -4a
-2 + -4a = -4 + 7a + -7a

Combine like terms: 7a + -7a = 0
-2 + -4a = -4 + 0
-2 + -4a = -4

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

Combine like terms: -2 + 2 = 0
0 + -4a = -4 + 2
-4a = -4 + 2

Combine like terms: -4 + 2 = -2
-4a = -2

Divide each side by '-4'.
a = 0.5

Simplifying
a = 0.5

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