Home » » If 2x + y = 7 and 3x - 2y = 3, by how much is 7x greater than 10?

# If 2x + y = 7 and 3x - 2y = 3, by how much is 7x greater than 10?

### Question

If 2x + y = 7 and 3x - 2y = 3, by how much is 7x greater than 10?

A) 1

B) 3

C) 7

D) 10

E) 17

### Explanation:

2x + y = 7 = i
3x - 2y = 3 = ii
i x 2 + ii = 4x + 2y = 14

$$\frac {3x - 2y = 3}{7x = 17}$$

x = $$\frac {17}{7}$$ = 7x = 17 x 1/7 x 7
17 - 10 = 7

## Discussion (3)

• Pls how did they get 7x=17

$$\frac {3x - 2y = 3}{7x = 17}$$
x = $$\frac {17}{7}$$ = 7x = 17 x 1/7 x 7