In order to find the simplest form of an expression we find the terms with the same unkown values. For the following expression
4x - 3 - 6y + (-22) - 2y + 7
we have that
terms with x: +4x
terms with y: -6y and -2y
numbers: -3, -22 and +7
We combine like terms, that means that we add the terms with the same unkowns:
terms with x: +4x
terms with y: -6y -2y = -8y
numbers: -3 - 22 + 7 = -18
And now, we replace the results in the original equation:
4x - 3 - 6y + (-22) - 2y + 7
= 4x - 8y - 18
Answer: its simplest form is 4x - 8y - 18
