3 years ago

Solve the following simultaneous linear equations.2x + y = 54x – 3y = -10

Mathematics

1 answer:

Jet001 [13]3 years ago

7 0

Answer:

(1/2,4)

Step-by-step explanation:

First, determine y in first equation: 2x+y=5 or y=5-2x

replace value of y determined in first equation (5-2x) into 2nd equation

4x-3(5-2x)=-10

4x-15+6x=10

10x=5

x=1/2

put value of x into either equation to solve for y so

2(1/2)+y=5

1+y=5

y=4

answer: x=1/2, y=4

check answer by substituting x and y into either equation:

4x-3y=-10

4(1/2)-3(4)=-10

2-12=-10

-10=-10

2x+y=5

2(1/2)+4=5

1+4=5

5=5

You might be interested in

George is comparing two different phones. The screen of phone A has a width of 5.3 cm. The width of the screen on phone B

bija089 [108]

Answer:

To answer this question, you need to makes the unit of the smartphone screen same. In this case, phone A is using decimal and phone B is using a fraction. You can use which was easier.

Let's try to use decimal. Then you need to convert phone B fraction width into decimal width. The calculation would be: 5cm + 1/3cm= 5 cm + 0.333cm= 5.333cm

From here it clear that phone B has a wider screen than phone A.

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

What is the value of t in the equation<br><br> t + 3 = −13

Westkost [7]

T=-16... I hope this helps love! :)

7 0

2 years ago

Read 2 more answers

Therese filled a rectangular pool with water. The pool measured 214 yards long, 2 yards wide and 3 yards tall. If the pool was f