PLS HELP I'LL TRY TO GIVE BRAINLIEST Solve each equation and prove that your answer solves the original equation.
25 - 3x = 40 1/3x - 12 = -3

25 - 3x = 40            x=-5

1/3x - 12 = -3           x=27

Step-by-step explanation:

25-3x=40 -> subtract 25 each side -3x=15 -> divide -3 each side x= -5

b) 36

step-by-step explanation:

18 times 2 is 36

for this case we must apply distributive property to the following expression:

the distributive property states that:

then, when applying the property we have to multiply the -2 for each term within the parenthesis: