Q.2 Solve the following equations:

(?) 2(x + 4) = 12

(b) 3(n – 5) = 21

(c) 3(n – 5) = -21

(d) -4(2 + x) = 8

(e) 4(2 – x) = 8

(?) 2(x + 4) = 12

(b) 3(n – 5) = 21

(c) 3(n – 5) = -21

(d) -4(2 + x) = 8

(e) 4(2 – x) = 8

(a) 2(x+4) = 12

= x+4 = 12/2

= x = 6-4 = 2

(b) 3(n-5 ) = 21

= n-5 = 21 /3

= n =7+5= 12

(c) 3(n-5) = -21

= n-5 = -21 /3

= n= -7 +5 = = -2

(d) -4 (2+x) = 8

= 2+x = 8/-4

= x = -2 -2 = -4

(e) 4(2- x ) = 8

= 2- x = 8/4

= -x = 2-2

= x = 0