Question

. Solve the following equations by the trial and error method. a. 3z + 11 = 17 b.4 (x + 1) = 16

Answer 1

Step-by-step explanation:

a) transfer 11 to rhs and then solve

b) firstly multiply 4 in whole equation i.e. 4x+4=16 and again transfer 4 to rhs and then solve

Answer 2

Answer:

a.z=3 b.x=3

Step-by-step explanation:

a.3z+11=17

3z=17-11

z=9/3

z=3

b.4(x+1)=16

4x+4=16

4x=16-4

4x=12

x=12/4

x=3