Bomarie02 Bomarie02

02-03-2018
Mathematics

contestada

solve the following system of equations: -2x+y=1
-4x+y=-1
A)(3,1)
B)(-1,3)
C)(-1,-3)
D)(1,3)

Respuesta :

sqdancefan sqdancefan

04-03-2018

You can subtract the second equation from the first:
.. (-2x +y) -(-4x +y) = (1) -(-1)
.. 2x = 2 . . . . . . . . . . . . . . . . . . . simplify
.. x = 1 . . . . . . . . . . . . . . . . . . . . . divide by 2

This corresponds to selection D) (1, 3).

Ver imagen sqdancefan

Answer Link

Otras preguntas

Where can one find chartered bus rental services?

Match the inequality with its line graph. 1. -6-5 -4-3-2-1 0 2. + -6-5 1 2 2-6 3 +> -x-5≤-2 -4-3-2-1012 3. + 2 6+x≤3 -6-5 -4 -3 -2 -1 0 1 2 4. ++ -6-5 -4-3-2

Suppose you want to give the coordinates of three points that are vertices of a right triangle how can you do this without looking at a coordinate plane

How many pairs of vertical angles are there9

Calculate Lindere's total monthly income

What is the answer (x+1)(x+1)=

204 base 5 + 243 base 5 -21 base5

Who is responsible for bagging delivery sandwiches and tickets?

What are 5 facts about landfill pollution?

90 is what percent of 95