emmaculatemumbua14 emmaculatemumbua14

15-04-2021
Mathematics

contestada

x+y=7
3x+y=15
solve by substitution method

Respuesta :

lolabae2 lolabae2

15-04-2021

Step-by-step explanation:

x =7-y

subs x in eqn 2

3(7-y)+y=15

21-3y+y=15

21-2y=15

21-15=2y

6=2y

y=6/2

y=3

Answer Link

Otras preguntas

prime factorization of 15

What is the volume of the cylinder? [tex]\pi[/tex] = 3.14a bomVolume -mm6mmVolume4mm

usett =3.14 find the circumference and area of a circle d =7cm

[tex]\sqrt{} 98[/tex]

"Act only upon that maxim that you can will at the same time will to be a universal maxim" is the _________ formulation of the categorical imperative? A. best B

Why are satellites important?

Additional Problem: A simple pendulum, consisting of a string (of negligible mass) of length L with a small mass m at the end, is initially held horizontal (θ =

the idea about the universe that keeps expanding outward, then collapsing inward and recycling over and over

Egyptians used what technique to try to cure disease

What is the constant of proportionality of the relationship shown in the graph? A) 1/3 B) 3 C) 15 D) 0