Question

determine the x-value of the solution to the system of equations
x+y=-3
x=y+19

a) x=-11
b)x=8
c)x=3
d)x=-3

Answer 1

x+y = -3

x = -3-y

so we have
x =y +19

-3-y = y+19
-3 - 19 = y+y

-22 = 2y

Answer 2

we get y = -11
but given x + y = -3

so

x + (-11) = -3

x-11 = -3

x = -3+11

Answer 3

got it @albertcornejo ?

Answer 4

oh okay i got it thanks.

Answer 5

so what do u get for x?

Answer 6

its 8

Answer 7

good work..