3 years ago

How do you solve the linear equation: 3x+2y=11 7x-y=3 By using the elimination method?!

Mathematics

1 answer:

AleksandrR [38]3 years ago

7 0

3x + 2y = 11

2(7x - y) = 2(3)

14x-2y=6

Adding both equations
3x + 2y = 11

14x-2y=6

17x=17

x=1

substitute x = 1 in any equation

3(1) + 2y = 11

2y = 8

y = 4

Solution: x=1 y=4

You might be interested in

How many groups of 12 pound are in 234 pounds?

dolphi86 [110]

Answer:

19.5

Step-by-step explanation:

7 0

3 years ago

Please give me the correct answer

Svetllana [295]

Answer:

Plane flies faster

Step-by-step explanation:

Imagine a plane and a bird fly next to each other in a race who do you think has enough energy/fuel to get to the end faster?

4 0

3 years ago

Read 2 more answers

List all the factors of 63

labwork [276]

The factors of 63 is 1,3,7,9,21,63

8 0

4 years ago

Read 2 more answers

Solve 0 = -1.8y + 0.72. What is y = to? 1.0.4 2.-0.4 3.0.8 4.1.8

PIT_PIT [208]

Answer:

0.4

Step-by-step explanation:

just solve it like an equation.

4 0

3 years ago

Read 2 more answers

42 students are going on a field trip the students are divided into groups of four students. How many groups of four students wi

PolarNik [594]

10 groups of 4 and 1 group of 2

8 0

3 years ago