7[a-1]=45

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Solution for 7[a-1]=45 equation:


Simplifying
7[a + -1] = 45

Reorder the terms:
7[-1 + a] = 45
[-1 * 7 + a * 7] = 45
[-7 + 7a] = 45

Solving
-7 + 7a = 45

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 + 7a = 45 + 7

Combine like terms: -7 + 7 = 0
0 + 7a = 45 + 7
7a = 45 + 7

Combine like terms: 45 + 7 = 52
7a = 52

Divide each side by '7'.
a = 7.428571429

Simplifying
a = 7.428571429

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