Y=-3x+3

Y=5x+19

Solve this system by substitution

x = - 2

y = 9

Step-by-step explanation:

to evaluate this system of equation we would say that

let

Y=-3x+3 ... equation 1

Y=5x+19 ... equation2

substitute equation 2 into equation 1

5x + 19 = - 3x + 3

collect the like terms together

5x + 3x = 3 - 19

8x = - 16

divide both sides by the coefficient of x which is 8

8x/8 = - 16/8

x = - 2

put x = - 8 into equation 1

Y=-3x+3 ... equation 1

y = - 3 (-2) + 3

y = 6 + 3

y = 9

therefore the value of x and y is - 2 and 9 respectively.

x=-2

Step-by-step explanation:

You can substitute the first equation into the second:

-3x+3=5x+19

Add 3x on both sides:

3=8x+19

Subtract 19 on both sides:

-16=8x

Divide 8 on both sides:

x=-2