Solve y−4=3
.
y=_
question 2
which statement shows the correct justification for the step used to solve the equation?
add 3 to each side.
add 4 to each side.
subtract 3 from each side.
subtract 4 from each side.

Add 4 to each side.

Step-by-step explanation:

y−4=3

(y-4)+4=3+4

y=7

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square

step-by-step explanation:

given perimeter: 28cm

length: 9cm

atp,

2(l+w)=p of the reactangle

2(9+x)=28

18+2x=28

2x=28-18

x=10/2

x=5

therefore width is 5 cm