ConnectionsAcademy02 ConnectionsAcademy02

10-02-2017
Mathematics

contestada

5.Solve the system using substitution.
y-2x=3
3x-2y=5
A.(-1/2,2)
B.(2,7)
C.(-8,-13)
D.(-11,-19)

Respuesta :

abroderick2020 abroderick2020

11-02-2017

y-2x=3
3x-2y=5

y=3+2x
3x-2y=5

3x-2(3+2x)=5

3x-6-6x=5

3x-6x=11

-3x=11

x=-3.6

y=3+2(-3.6)

y=3-7.2

y=-4.2

Answer Link

Otras preguntas

{–½, 2} {–½, –2} {½, 2} {½, –2} Use the quadratic formula to solve 2y2 – 5y = –2.

What is 7/10 - 1/4 (fraction)

how to make a sentence with conflict resolution?

what is 3(g-7)=2(10+g)

ABCD is a square and a semicircle O has a radius of 6. WHAT is the area of this figure?

ABCD is a square and a semicircle O has a radius of 6. WHAT is the area of this figure?

The arrangement of atoms in a water molecule, H₂O, is best described as (A) ring (B) trigonal planar (C) linear (D) trigonal pyramidal (E) bent

what is 3(g-7)=2(10+g)

Which of the following statements about eutrophication is NOT true? (A) It is caused by acid rain. (B) It is caused by the addition of nutrients to a water syst

Evaluate the following expression: 7.0 x 10⁴ + 6.0 x 10³ A) 13 x 10⁷ B) 42 x 10⁷ C) 67 x 10³ D) 76 x 10³