11 1/2 - (3 1/3 + 2 2/5) x (1 - 28/43) Plz answer in fraction form also I will give BRAINLIST

You are making a battery for a science project. you have copper wire for your first electrode. you need to choose a conductor, a second electrode, and a device to plug into your battery. you have already chosen a lemon conductor. complete each statement below about the options that include a lemon conductor.

Three times the sum of a number and seven is negative thirty-six. what is the number?

Solve the equation for x.3(6x - 1) = 12 i've tried doing the math and i can't find out what i'm doing wrong