Step-by-step explanation:
using elimination method because this is a simultaneous equation
3×x+6×y=111
x+y=27
1×[3x+6y=111]
3×[x+y=27]
3x+6y=111—equation 1
3x+3y=81—equation 2
substrate equation 1 from equation 2
3y=30
divide both sides by 3
y=10
substitute 10 for y in equation 1
3x+6y=111
3x+6(10)=111
3x+60=111
3x=111-60
3x=51
divide both sides by 3
x=17
Answer:
16.81 and 12.25
Step-by-step explanation:
(3,-3), (-2,-3) The y's are the same so always look for the same number for the x or y.
3627 x 673:(876)= 2138290596
I got that by taking 3627x876(876) and got that
I think it’s true because happy body happy mine