Saima112 Saima112

21-03-2015
Mathematics

Answered

what is the answer to y=6+4x and y=-5x-21

Answer :

baonguyenq1999 baonguyenq1999

21-03-2015

y=4x+6
y=-5x-21

4x+6=-5x-21
add both sides by 5x
also subtract both sides by 6
9x=-27
x=-3

plu x=-3 in y=6+4x
y=6-12
y=-6

Answer Link

21-03-2015

y=6+4x

y=-5x-21

=> 6+4x=-5x-21

9x=-27

x=-3

y=6+4*(-3)=6-12=-6

y=-6

Solution: (-3; -6)

Answer Link

Other Questions

What is the area of a rectangle is represented by 3x2+3x + 10x -10 what are the dimensions of the rectangle

a butterfly has a wingspan of 66mm and a height of 6cm which i greater its wingspan or its height

The product of two consecutive positive integers is 27 more than 5 times the larger

Which sentence does not contain any errors in comma usage? A. Our old sweaters look like big, fluffy animals. B. This is the worst, and

What is necessary to convict someone of treason?

How did the democracy of Athens influence the American government?

What is the rule: 36 --> 60, 12 --> 20, 6 --> 10, 15 --> 25

For a wall of a given material and of a fixed surface area, the rate of heat loss by conduction through the wall is inversely proportional to the thickness (T)

What are the major effects of the ozone hole?

an inflated balloon rubbed by a piece of wool and prssed against the wall sticks. which force acts on it?