Question

Solve these equation by trial and error method.
x+4=7
Please tell linewise​

Answer 1

Answer:

x=3.................

Step-by-step explanation:

x+4=7

x=7-4

x=3

Answer 2

Answer:

if X =0

0+4is not equal for7

if X =1

1+4 is not equal to 7

X=3

3+4=7

therefore x=3