Question

2. Solve the following equations: (a) 2(x + 4) = 12 (b) 3(n - 5) = 21 (d) - 4(2 + x) = 8 (e) 4(2 - x) = 8 (C) 3(n-5) = -21 les​

Answer 1

Answer:

a.

2(x+4)=12

2x+8=12

2x=12-8

2x=4

x= 4/2

x=2

Answer 2

Answer:

a) 2x+8=12

=> 2x=4 => x=2

b) n-5= 7 => n=12

c) n-5 = -7 => n = -2

d) -2-x=2 => x= -4

e)2- x =2 => x = 4