Determine the error in Marty's work to solve the following equation. Please help me find what is wrong with the equation fast

Original equation: 3(-2x - 6) = 4 + 2 (7x - 3)
Line 1: -62 - 18 = 4 + 142 - 3
Line 2: -6x - 18 = 1 + 143
Line 3: -18 = 1 + 20
Line 4: -19 = 20.3
Line 5: -19/20=x

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.

i need a picure

step-by-step explanation:

i think asking google will you get the answer to that question