Solve the system of equations and choose the correct answer from the list of options.

d + e = 15
−d + e = −5

Label the ordered pair as (d, e).
(0, 0) (10, −5) (5, 10) (10, 5)

Question

Solve the system of equations and choose the correct answer from the list of options. 

d + e = 15 
−d + e = −5 

Label the ordered pair as (d, e).
 (0, 0) (10, −5)  (5, 10) (10, 5)

carolinar7 · Answer

ok do you know what a system of equations is

anonymous · Answer

no

carolinar7 · Answer

A system of equations is a collection of two or more equations with a same set of unknowns. In solving a system of equations, we try to find values for each of the unknowns that will satisfy every equation in the system. The equations in the system can be linear or non-linear.

carolinar7 · Answer

Now that you know this would you rather solve it by elimination or substitution

anonymous · Answer

@Michele_Laino

michele_laino · Answer

I solve the second equation with respect to e, and I find:
$$\Large  e = d - 5$$

carolinar7 · Answer

Now substitue that into the other equation

michele_laino · Answer

what do you get? @lil_chukie

carolinar7 · Answer

d+(d-5)=15

michele_laino · Answer

please continue @lil_chukie

anonymous · Answer

idk how to do this

anonymous · Answer

@Michele_Laino  whats the answer

michele_laino · Answer

we have:
2d-5=15
then
2d=20
and
d=20/2=...?