georgina12 georgina12
  • 09-03-2020
  • Mathematics
contestada

How do I solve it because it’s really difficult

How do I solve it because its really difficult class=

Respuesta :

lavanyaande
lavanyaande lavanyaande
  • 09-03-2020

The solution of the equation is x= 3 and y = 2

Step-by-step explanation:

Given,

-3x-4y = -17 and

-x-3y = -9

The system of equation can be rewritten as

3x+4y = 17 ------eq 1 and

x+3y = 9 ------ eq 2

To solve for x and y

Multiplying eq 2 by 3 we get,

3x + 9y = 27

or, 3x = 27-9y

Putting this value of x into eq 1 we get,

27-9y +4y = 17

or, -5y = 17-27

or, -5y = -10

or, y = 2

Now put y=2 in eq 2 we get,

x = 9 - 3(2)

= 3

Hence the solution is x = 3 and y = 2

Answer Link

Otras preguntas

what are the main human characteristics of the sahara desert
I was wondering if you can check my answers?
What is the contrapositive of the statement? All squares are rectangles. If a figure is a square, then it is a rectangle. If a figure is a rectangle, then it i
What should be applied to contractions?
What was the name given to the new deal program designed to employee artist
when any item or surface has blood or opim on it that item or surface is said to be contaminated true or false
Animo acid and protein
NEED HELP!! Write two real-world problems that can be solved using multi-step equations that use fractions or decimals. Solve each equation, showing and explain
which statement describes the religious beliefs of early romans
ita hard to beat a boiled egg for breakfast, what is the pun