14-05-2016
Mathematics

contestada

solve the simultaneous equation, 5x=2y+1 2x-3y+4+0

Respuesta :

14-05-2016

Hello,

I suppose the 2th equation is 2x-3y+4=0

5x-2y=1 ........|*2 | *3
2x-3y=-4....... |*(-5) | *-2
==> -4y+15y=2+20==>11y=22==>y=2
and 15x-4x=3+8 ==>11x=11 ==>x=1
Proof:

5*1=? 2*2+1 yes
2*1-3*2+4=? 0 yes (linear combinaison method)

Answer Link

Otras preguntas

Which of the following is equivalent to -2x (4 - x) = 15 A - 2^2 - 8x - 15 = 0 B - 2^2 - 8x + 15 = 0 C 2^2 - 8x - 15 = 0 D 2^2 - 8x + 15 = 0

What kind of writing was used to describe the code on the stele

solve for h pls show work 1/3 = h + 2/5

HELP ME AND PLEASE SHOW ALL YOUR WORK

What is one thing that Pete can do with an online dictionary that he can’t do with a print dictionary? type in a specific word look at a word’s spelling find th

What is the solution to –2|2.2x – 3.3| = –6.6? A) x = –3 B) x = 3 C) x = –3 or x = 0 D) x = 0 or x = 3

please help this is points lines and planes

The prime factorization of 28 is: 2 3 × 7 2 × 14 2 2 × 7 4 × 7

Could the mean of a data set be greater than Q3 (3rd Quartile)? Explain.

Write 6.24 as a percent.