Question

What will be the value of x for the equation 3x + 9 = 45

Answer 1

3x+9=45

3x=45-9

3x=36

x=36/3

x=12

Answer 2

answer

3x+9=45 ( suppose that x value is 1)

so, 3(1) + 9 = 45

3+9 =45

12=45

now we have to divide both 12=45

so the answer is 3.75