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This is an expression, not an equation, so you actually cannot "solve" it.

If it is an equation, it should be equal to something, let's say "b", so the real problem should be "7a-3=b"

If that's the case, first you should add 3 to both sides (in order to know the value of "a")


=> 7a=b+3

Second step. Divide both sides by 7



So you have "a" expressed in terms of "b"

In order to know the value of "a" and "b", you should have a second equation. It might be b="number" (let's say b=0)

So, if b=0, then



If "b" equals anything else, just type the value or expression of "b" instead of 0

This is an expression, not an equation. There is no equals sign so no solution. If it is in a maths question, there is probably more to it.

This is an expression. If you want to solve it, you need to convert it to an equation (it has an equal sign). If you assume this is an equation that equals 0, then it becomes easy to solve. 

An equation can't be solved unless we have the full equation, i.e. 7a - 3 = -----

If 7a - 3 = 0, for example, add 3 to both sides:

     7a = 3

Divide both sides by 7:

     a = 7/3 = 2 1/3

ta da

Hopefully this helps

I can help you solve this algebra question, however, you need to buy Tutor time first please as I do not get paid for answering individual, questions. Kind Regards, Victoria

Should equal something...

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