Solve the two-step equation and identify the steps. 2= -7/4 + 1/4x

1. Add 7/4 to both sides
2. Multiply both sides by 4.

The solution is 15.

x = 15

Step-by-step explanation:

Given

2 = - + x

Multiply through by 4 to clear the fractions

8 = - 7 + x ( add 7 to both sides )

15 = x

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional