Question

Given this system of equations, which method would you use to solve? Y=x+5 / 3x-2y=10

Answer 1

x = 20

y= 25

Explanation:

to evaluate this system of equation using substitution method , we would say that let

Y=x+5 ............................................................equation 1

3x-2y=10........................................................ equation 2

substitute for eqution 1 into equation 2

3x - 2y = 10

3x -2(x + 5) = 10

3x -2x -10 = 10

collect the like terms

3x - 2x = 10 + 10

x = 20

put the value of x = 20 into equation 1

Y=x+5 ............................................................equation 1

y = 20 + 5

y = 25

therefore the value of x and y are 20 and 25 respectively