Question

2x +y =6 4x-2y = 4. Solve graphically

Answer 1

Answer:

x = 2 , y = 2

Step-by-step explanation:

2x + y = 6 ------ 1

4x - 2y = 4 ------ 2

multiply 1 equation by 2

2 ( 2x + y = 6 )

4x + 2y = 12 ------- 3

Adding 3 and 2 equations

4x + 2y = 12 -------- 3

4x - 2y = 4 -------- 2

_________

8x = 16

x = 16 ÷ 8

x = 2

substituting x = 2 in 2 equation

4x - 2y = 4 -------- 2

4 × 2 - 2y = 4

8 - 2y = 4

- 2y = 4 - 8

- 2y = - 4

2y = 4

y = 4 ÷ 2

y = 2