a(9)+7=8(9)+b

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Solution for a(9)+7=8(9)+b equation:


Simplifying
a(9) + 7 = 8(9) + b

Reorder the terms for easier multiplication:
9a + 7 = 8(9) + b

Reorder the terms:
7 + 9a = 8(9) + b

Multiply 8 * 9
7 + 9a = 72 + b

Solving
7 + 9a = 72 + b

Solving for variable 'a'.

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

Add '-7' to each side of the equation.
7 + -7 + 9a = 72 + -7 + b

Combine like terms: 7 + -7 = 0
0 + 9a = 72 + -7 + b
9a = 72 + -7 + b

Combine like terms: 72 + -7 = 65
9a = 65 + b

Divide each side by '9'.
a = 7.222222222 + 0.1111111111b

Simplifying
a = 7.222222222 + 0.1111111111b

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