settasav
settasav
21-02-2017
Mathematics
contestada
2x+3y=40 and -2x+2y=20
Respuesta :
cher
cher
09-07-2017
Equation 1) 2x + 3y = 40
Equation 2) -2x + 2y = 20
Add equations together.
5y = 60
Divide both sides by 5.
y = 12
Plug in 12 for y in the first equation.
2x + 3y = 40
2x + 3(12) = 40
Simplify.
2x + 36 = 40
Subtract 36 from both sides.
2x = 40 - 36
Simplify.
2x = 4
Divide both sides by 2.
x = 2
x = 2, y = 12
~Hope I helped!~
Answer Link
VER TODAS LAS RESPUESTAS ( 47+ )
Otras preguntas
The 2222222229 u of Mete LIZ Hunter Georgia Sean Taylor Grant a. What would be a good title for the graph b. How many miles did Georgia walk? c. Which two peopl
what are some distracts that will happen in the medical office
tombolo marine terrace sea arches sea caves wave-cut cliffs? which doesnt fit
Help!!! I tried.....
A tech start-up company is considering deploying a new email system. The start-up is currently identifying risks associated with the potential downtime of the n
A diner had $750,000 in sales last year. All restaurants in the area totaled $10,000,000 in sales. What is this diner’s market share
names of oduduwa grandchild
In circle J with m, angle, H, L, K, equals, 56, degreesm∠HLK=56 ∘ , find the m, angle, H, J, Km∠HJK.
Leah is wallpapering 3 same-sized rectangular walls in the living room. Each wall is 10 feet long and 8 feet tall. There is also a rectangular door on one of th
Some Point of Views on " No Face" by Junot Diaz
