Question

the root of 3x-5=7 is x=4

Answer 1

3x-5=7
3x=7+5
3x=12
X=12/3
X=4

Answer 2

Answer:

i

Step-by-step explanation:

if we insert 4 in place of x then:

3 * 4-5=7

12 - 5=7

therefore 7=7

hence proved