Which best explains why y=y+1 has no solution?

Think of any number you want to replace y. Let's say you pick 3. So y = 3.

Replace every copy of y with that number 3. You will go from y = y+1 to 3 = 3+1

Then simplify the right side and you end up with 3 = 4, which is false. The number 3 is different from the number 4, so they can't be equal. This contradiction is one example (of many) that helps prove y = y+1 is false.

To prove that y = y+1 is false for every real number, you would subtract y from both sides like so

y = y+1

y-y = y+1-y

0y = 0y+1

0 = 0+1

0 = 1

and we have another contradiction here, so there is no way this equation has a solution. We say that this equation is inconsistent

so firstly, we need to isolate the y variables to be able to solve these inequalities. firstly, add 0.5x on both sides of the first inequality and subtract 1.5x on both sides of the second inequality:

now since the slope is positive for the first inequality, this means that the line going upwards belongs to the first inequality, and the line going downwards belongs to the second inequality.

next, since y ≥ in the first inequality, this means that the shaded region will be above the first inequality's line, thus shading regions a and b.

next, since y ≤ in the second inequality, this means that the shaded region is going to be below this line, thus shading regions a and c.

since both lines shade region a, this means that region a is the solution.

step-by-step explanation:

mark brainliest!

47 - 90 = 43

43 - 180 = x

x = 137