martinovic5
martinovic5
22-04-2015
Mathematics
contestada
substitution
y=2x+5
x+2y=15
Respuesta :
Panoyin
Panoyin
23-04-2015
y = 2x + 5
x + 2y = 15
x + 2(2x + 5) = 15
x + 2(2x) + 2(5) = 15
x + 4x + 10 = 15
5x + 10 = 15
- 10 - 10
5x
=
5
5 5
x = 1
y = 2(1) + 5
y = 2 + 5
y = 7
(x, y) = (1, 7)
Answer Link
VER TODAS LAS RESPUESTAS ( 54+ )
Otras preguntas
How do government corporation differ from other corporation in the United States?
Why did farmers lose their crops on the Great Plains
I need help with two and three
Are the equations 10x + 6 and 5x + 11 always, sometimes, or never equivalent? Explain.
How many solutions does this problem have? 2x + 4 =2x + 4
Which of the following is a process perspective on motivation? 1) Goal-setting theory 2) Job characteristics model 3) Two-factor theory 4) ERG theory 5) Acquire
River separating south africa from botswana and zimbabwe
What is the correct answer
what was the codename of D-day
To say that a student lumbered into a room rather than walked into a room is to emphasize which quality in the student?
