How do you do this? -7x - 3x + 2= -8x - 8

-7x - 3x + 2= -8x - 8

combine like terms

-10x +2 = -8x -8

add 10x to each side

-10x + 10x +2 = -8x + 10x -8

2 = 2x-8

add 8 to each side

2+8 = 2x-8+8

10 = 2x

divide each side by 2

10/2 = 2x/2

5 =x

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

answer: city needs 2.4 inches of rainfall more to match the record of 40 inches.

step-by-step explanation:

since we have given that

total annual rainfall a city record = 40 inches

this year, total rainfall recorded = 37.6 inches

number of inches of rainfall   is needed to match the record of 40 inches is given by

hence, city needs 2.4 inches of rainfall more to match the record of 40 inches.