Question

5x - 4y = 19
x + 2y = 8

Answer 1

x= 5, y= 3/2

Explanation:

5x -4y =19 (Equation 1)

x+ 2y=18 (Equation 2)

Using substitution method,

From equation(2),make x the subject of formula

x= 8-2y (Equation 3)

Substitute equation 3 into equation 1

5x -4y= 19

5(8-2y) -4y = 19

40 -10y -4y = 19

40-14y=19

Collect like terms

40-19=14y

21=14y

y= 21/14 = 3/2

Substitute for y in equation 3

x= 8 -2y

8- 2(3/2)

=8 -3

x = 5

Answer 2

not sure what your question is but if youre trying to solve for the system of equations your awnser is (5,3/2)