7a+1=9a-6

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Solution for 7a+1=9a-6 equation:


Simplifying
7a + 1 = 9a + -6

Reorder the terms:
1 + 7a = 9a + -6

Reorder the terms:
1 + 7a = -6 + 9a

Solving
1 + 7a = -6 + 9a

Solving for variable 'a'.

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

Add '-9a' to each side of the equation.
1 + 7a + -9a = -6 + 9a + -9a

Combine like terms: 7a + -9a = -2a
1 + -2a = -6 + 9a + -9a

Combine like terms: 9a + -9a = 0
1 + -2a = -6 + 0
1 + -2a = -6

Add '-1' to each side of the equation.
1 + -1 + -2a = -6 + -1

Combine like terms: 1 + -1 = 0
0 + -2a = -6 + -1
-2a = -6 + -1

Combine like terms: -6 + -1 = -7
-2a = -7

Divide each side by '-2'.
a = 3.5

Simplifying
a = 3.5

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