Question

Which of the following is not equivalent to x - y + z?

x + z - y
z + x - y
y - x + z
z - y + x

Answer 1

is not equivalent means in this case
"which option changes one or more of the terms signs"
so what you think? the original sign of x is positive and for y is negative and for z is positive so which is the right answer?

Answer 2

b?

Answer 3

B follows the same rule of the original expression
s is positive z is positive and y is negative so no not B

Answer 4

C.

Answer 5

wait no A?

Answer 6

Indeed C
why? because the original signs are
x positive
y negative
z negative
where in option C we have
y positive
x negative
z positive
so that's not equivalent
so yes C

keep carrying on detailed answers

Answer 7

@mathmale