Cedric and insha solved the same equation using the calculations below. cedric and insha solved the same equation using the calculations below. cedric and insha solved the same equation using the calculations below.

Cedric's Work :

z - 4.5 = -1.5

z - 4.5 + 4.5 = -1.5 + 4.5

z = 3

Insha's Work :

z - 4.5 = -1.5

z - 4.5 + (-4.5) = -1.5 + (-4.5)

z = -6

Which statement is true about their work?

Given options :

(a) Cedric is correct because he used the inverse of subtraction and added 4.5.

(b) Cedric is incorrect because he should have subtracted 4.5 from both sides instead of adding.

(c) Insha is correct because she added the opposite if 4.5, which is -4.5, to both sides.

(d) Insha is incorrect because she did not add -1.5 + (-4.5) correctly.

Answer : Option A

Insha work is incorrect because she forgot to perform opposite operation.

z - 4.5 = -1.5

Opposite of -4.5 is +4.5

Insha subtracted 4.5 on both sides instead of adding it.

Cedric added 4.5 on both sides of the equation.

Cedric is correct because he used the inverse of subtraction and added 4.5.

-2 is the right

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.