Question

which of the following equationd has x=3 as a solution? 1.x-2
2.x+2 =5
3.2x+1=0
4. x+4=6​

Answer 1

Answer:

x=3

1.x-2

3-2=1

2.x+2=5

LHS

x+2

3+2=5 RHS

3. 2x+1=0

LHS

2x+1

2*3+1

6+1=7 RHS ( 2x+1 is not equal to 0)

4. x+4=6

LHS x+4

3+4 =7RHS( x+4 is not equal to 6)