ladytifill27ladyty27 ladytifill27ladyty27

18-09-2016
Mathematics

contestada

Solve the system of equation.
2x-3y=-1
y= x- 1

Respuesta :

apologiabiology apologiabiology

18-09-2016

sub
y=x-1 so sub x-1 for y in first equation

2x-3(x-1)=-1
2x-3x+3=-1
-x+3=-1
minus 3 both sides
-x=-4
times -1
x=4

sub

y=x-1
y=4-1
y=3

x=4
y=3
(4,3)

Answer Link

Dylan305 Dylan305

18-09-2016

2x-3y= -1 (label 1)
y=x-1 (label 2)
sub 2 in 1
2x-3(x-1)= -1
2x-3x+3= -1
-x+3= -1
-x=-4
x=4
sub x=4 into 2
y=4-1
y=3

x=4 and y=3

Answer Link

ACCESS MORE ACCESS MORE ACCESS MORE ACCESS MORE

Otras preguntas

How do you graph and work problem x+4y=16??

Jesse's dog Angel weights 18 1/2 lbs.. How many ounces does Angel weight?

why did the intolerable acts happened??

If the speedometer on a car indicates a constant speed, can you be sure the car is not accelerating? Explain

Brian has 3 basketball cards and 5 baseball cards. What fraction of Brian's cards are baseball cards?

How has the Pythagorean Theorem helped us through life?

Describe how you solved the following problem:I have a jar filled with $100 worth of quarters, nickels, and dimes. I have the same amount of each type of coin.

how to do this equation by elimination 8x +14y= 4 and -6 + -7y =-10

A restaurant received a shipment of 42 gal of orange juice and 18 gal of cranberry juice. The juice needs to be poured into equal-sized containers. What is the

Describe how you solved the following problem:I have a jar filled with $100 worth of quarters, nickels, and dimes. I have the same amount of each type of coin.