2x + y = -2

x + y = 5

x + y = 5

x + y = 5

Asked
9 months ago

Viewed
636025 times

**Answer:**

x= -7, y= 12

**Step-by-step explanation:**

To find the value of x and y, first label the 2 equations.

2x +y= -2 -----(1)

x +y= 5 -----(2)

(1) -(2):

2x +y -(x +y)= -2 -5

2x +y -x -y= -7 *(**expand** **bracket**)*

**x= -7**

subst. x= -7 into (2):

-7 +y= 5

y= 5 +7 *(**+**7** **on** **both** **sides**)*

**y= 12**

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