Question

find his error and correct it plz i beg help me i will give brainlist and points

Answer 1

Answer:

she didn't use distribution on the beginning of the equation

Step-by-step explanation:

6(x + 3) = 21

6x + 18 = 21

6x (+18 - 18) = 21 -18

6x = 3

6x/6 = 3/6

x = 0.5

6 (0.5 + 3) = 21

6(3.5) = 21

21 = 21

Answer 2

You have to multiply 6 by each number in the parentheses first so 6x + 18=21. subtract 18 by 18 it will cancel out then subtract it by 21 you will get 6x= 3. Then divide by 6 to get x=3/6