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2x-y=3

3x+3y=5

solve the system is it no solution, infinite solution or unique solution

Using the 1st equation, it is seen that y = 2x - 3.

Putting that in the 2nd equation gives 3x + 3(2x-3) = 5.

That is, 3x + 6x - 9 = 5, so 9x = 14.

That says x = 14/9.

Using 2x - y = 3, that is 28/9 - y = 27/9, so y = 1/9.

Checking this by using the 2nd equation gives 3x + 3x = 42/9 + 3/9 = 45/9 = 5,

and that is correct.

Algebra

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Any algebraic question you've got. That includes question that are linear, quadratic, exponential, etc.

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