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18
That simplifies to 3x - 9y. It can't be solved since it doesn't equal anything.
Multiplication and addition.
No. There is no equality (or inequality) in the question: only a list of expressions.
The first and third are quadratic expressions in x, the second is a quadratic expressions in n, and the fourth is a quadratic expressions in y. None of them are equations so cannot be solved.
There are no expressions given in the question.Otherwise, there are infinitely many possible expressions. Any expression of the from 3x*y/y where y is any non-zero constant or function - of x or other variables - will be equivalent.
(6x - 5y) + (-3x - 4y) =6x - 5y - 3x - 4y =3x - 9y =3 (x - 3y)
18
That simplifies to 3x - 9y. It can't be solved since it doesn't equal anything.
Expand the bracket.
No. There is no equality (or inequality) in the question: only a list of expressions.
Multiplication and addition.
There's not enough information here to answer this accurately. One problem is the lack of operation indication. This could be 3x or 3x or 3 - x or 3 + x. In the future, it is better to write out operations on this website. Presumably, you were given a set of expressions to compare that to but you didn't include them. One possibility: x + x + x = 3x
Two linear expressions with a sum of -5x plus 4 are ( -5x + 4 ) and ( 4 - 5x).
For example: 9x2-25 = (3x-5)(3x+5) but this only applies to negative expressions it wouldn't apply to 9x2+25
It is an expression in two variable: it is NOT an equation. There is no standard form for expressions.
The given expressions can be simplified to: 7y-8x-14