Question

Solve the following pair of linear equation by the elimination method and the substitution method x +y = 5 2x+3y=4

Answer 1

Answer:

x = 11, y = -6

Step-by-step explanation:

Equation (1) : x + y = 5

Equation (2) : 2x + 3y = 4

Lets start by rearranging equation (1):

x + y = 5

x = 5 - y

Sub x = 5 - y into equation (2):

2(5 - y) + 3y = 4

10 - 2y + 3y = 4

10 + y = 4

y = 4 - 10

y = -6

Sub y = -6 into equation (1):

x + (-6) = 5

x - 6 = 5

x = 5 + 6

x = 11

Answer: x = 11, y = -6

Answer 2

this is another way of solving