filou222 filou222

23-11-2014
Mathematics

Answered

Substitution methode:
5x-3y=-11
x-2y=2

Answer :

23-11-2014

[tex]\begin{cases} 5x-3y=-11 \\ x-2y=2 \end{cases}\\\\\begin{cases} 5x-3y=-11 \\ x =2y+2 \end{cases}\\\\Substitution \\5(2y+2) -3y=-11 \\10y+10-3y=-11[/tex]

[tex]7y=-11-10\\7y=-21\ \ / :7\\y=-3\\\\x =2*(-3)+2=-6+2=-4\\\\Answer: \ \ \begin{cases}x=-4 \\y=-3 \end{cases}[/tex]

Answer Link

Other Questions

why did president taft fire gifford pinchot for insubordination?

What is a quadrilateral with four congruent sides

5x-1=21+3x what is the value of x ?

What does (3/5) to the second power equal

why was martin luther excommunicated and declared heretic?

how is charles changed afger submitting to the man's power?in wirnkle in time

Choose the correct answer Which relation is represented by the arrow diagram? A. {(4, –3), (5, –1), (7, 0), (2, 2), (7, 5)} B. {(4, –3), (5, –1), (0,

name at least two differences between the people in shakespeare's time-period and people today?

How many molecules in 2.00 mol of sucrose, C12H22O11??

48 cookies; 25 % decrease... Find the new amount given the original amount And the percent of change.