3 years ago

Solve each system by substitution. 5) 5x + 3y =-23 y = 4

Mathematics

1 answer:

docker41 [41]3 years ago

3 0

Answer:

(- 7, 4 )

Step-by-step explanation:

Given the 2 equations

5x + 3y = - 23 → (1)

y = 4 → (2)

Substitute y = 4 directly into (1_

5x + 3(4) = - 23, that is

5x + 12 = - 23 ( subtract 12 from both sides )

5x = - 35 ( divide both sides by 5 )

x = - 7

Solution is (- 7, 4 )

You might be interested in

This shows a part of a multiplication table. Find the missing numbers. Explain how you found the numbers

DedPeter [7]

Well the first part of the table is 7 cause 7x5- 35 x 6 is 42 x 7 49. Second part of the table is 8 x 5 40 x6 is 48 x 7 is 56. once you know this it is easy just to common factor it or just simply add 5 6 or 7 to the numbers already given

5 0

3 years ago

Read 2 more answers

At a store, 3 chairs and 4 desks together cost $367.95. The total costof 4 chairs and 6 beds is $$720.72. If the price of the de

Scrat [10]

$725.78

First timer. Do I need to write detailed solution?

7 0

3 years ago

A Toblerone candy bar is in the shape of a triangular prism. The area of the base is 3 in 2and the height of the prism is 5 in.

Mrac [35]

Answer:

15 in³

Step-by-step explanation:

Volume of the prism:

V = Bh, where B- area of base, h- height

Given:

B = 3 in²
h = 5 in

Volume is:

V = 3*5 = 15 in³

8 0

2 years ago

Câu 1. Cho ánh xạ f : R

9966 [12]

what is your clear question? it lacks some details

4 0

2 years ago

Pls help I’ll brainlest and add extra points for the correct answer

Alexandra [31]

Answer:

2x + 8x

10x

Step-by-step explanation:

Open the brackets and multiply x inside.

5 0

3 years ago

Read 2 more answers