Question

Helpppp :( I need help on this

Answer 1

X = -7

Explanation:

=> 7(x + 4)= -21

multiply all the terms in the bracket by 7

=> 7x + 28 = -21

make x the subject of formula

=> 7x = -21 -28

subtract the value

=> 7x = -49

divide both side by 7

=> x = (-49)/7

divide -49 by 7

=> x = -7

Answer 2

x = -7

Explanation:

Replace the x with -7 and add 4 to -7 to get -3. Then multiply by 7 to get -21.