Answer:
replace the ys with -3 then solve it
Answer:
x=1
y=-4
Step-by-step explanation:
Since -x-3=y subsitue that in at the top equation




Plug x=1 back into the equation to solve for y.


Answer: step-by-step
Step-by-step explanation:
answer: 10
to solve you have to follow PEMDAS
Every piece of cord is 1/10 of a meter long
(mn)3 = 3(mn) = 3 * m * n
so your answer is 3mn