7a-1=2a+4

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Solution for 7a-1=2a+4 equation:


Simplifying
7a + -1 = 2a + 4

Reorder the terms:
-1 + 7a = 2a + 4

Reorder the terms:
-1 + 7a = 4 + 2a

Solving
-1 + 7a = 4 + 2a

Solving for variable 'a'.

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

Add '-2a' to each side of the equation.
-1 + 7a + -2a = 4 + 2a + -2a

Combine like terms: 7a + -2a = 5a
-1 + 5a = 4 + 2a + -2a

Combine like terms: 2a + -2a = 0
-1 + 5a = 4 + 0
-1 + 5a = 4

Add '1' to each side of the equation.
-1 + 1 + 5a = 4 + 1

Combine like terms: -1 + 1 = 0
0 + 5a = 4 + 1
5a = 4 + 1

Combine like terms: 4 + 1 = 5
5a = 5

Divide each side by '5'.
a = 1

Simplifying
a = 1

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