3 years ago

Y = 2x - 3 x + y = 3 What is the solution set?

Mathematics

1 answer:

klio [65]3 years ago

6 0

y=2x-3 an x+y=3

subsitution

since y=2x-3, put (2x-3) wherever you see y

put taht in the other equation

x+y=3

x+(2x-3)=3

x+2x-3=3

3x-3=3

add 3 to both sides

3x=6

divide by 3

x=2

subsitute back

y=2x-3

y=2(3)-3

y=6-3

y=3

so the solution set in (x,y) form is (2,3)

You might be interested in

60% of the students at a school walk to school. Work out the percentage of the students who do not walk

Shkiper50 [21]

Answer:

40%

Step-by-step explanation:

everything is 100% so you have to

100-60=40

40% of people do not walk to school

3 0

2 years ago

Donna is taller than David but shorter than bill. dan is shorter than Bob. wha is the first letter in the name of the tallest pe

natka813 [3]

It would be B.
David Donna bill
Dan bob

6 0

3 years ago

ANSWER ASAP!!!!<br> PLEASE INCLUDE STEP BY STEP EXPLANATION<br> DO A.

ohaa [14]

Answer:

Step-by-step explanation:

I prefer the equation in this format

$\frac{3 |m - 2 {n}^{2} | }{4}$

substitute -4 for m and 6 for n

$\frac{3 | - 4 - 2( {6}^{2}) | }{4}$

square the 6 then multiply by 2

$\frac{3 | - 4 - 72| }{4}$

solve inside the absolute value then multiply by 3

$\frac{3 | - 76| }{4}$

$\frac{228}{4}$

divide by 4

$57$

8 0

3 years ago

Solve the equation using inverse operations. Check your solutions. In your final answer, include all of your work. 1/4X^3=-27/4

Kisachek [45]

We can start by separating the x^3, and that means we have to multiply both sides by 4, resulting in x^3=27. Next, we can find the cube root of both sides ( as x is the cube root of x^3), getting x=3

6 0

3 years ago

Read 2 more answers

Two out of 5 jelly beans are green if thd bag contains 135 jell bean how many green jelly beans are in the bag

photoshop1234 [79]

Answer:

54 green JBs

Step-by-step explanation:

2/5=x/135

5x=270

x=54 green JBs

3 0

3 years ago