Question

-5x+3y=51
Y=10x-8
Solve with substitution

Answer 1

Point form: (3,22)

Equation form: X=3 Y=22

Explanation:

Solve the equation (i):

−5x+3y=51

−5x+3y−(51)=0

−5x+3y−51=0

Now get the value of variable x

x= 3y/5 - 51/5

Solve the equation (ii):

Now put the value of variable x in equation 2nd

y=10*(3y/5 - 51/5) - 8

y - (10*(3y/5 - 51/5) - 8) = 0

110 - 5y = 0

Now get the value of variable y

y = 22

x = -51/5 + 3*22*1/5

x = 3