emmajojo17 emmajojo17

16-09-2019
Mathematics

contestada

5x – 2y = 1
x + 3y = -7
How to solve by substitution

Respuesta :

snugbug07 snugbug07

17-09-2019

Step-by-step explanation:

substitute x for 3 and y for 7

5×3-2y=1

15-2×7=1

15-14=1

substitute y for -5 and x for 8

8+3×-5=-7

8+-15=-7

Answer Link

Otras preguntas

Evaluate. 90 • 4 – 14 ÷ 2 + 102 ÷ 5 • 2 Please give me the right anwser ^_^

Which item belongs to one of the five food groups in the USDA's MyPlate Food Guidance System? oatmeal cookie milk olive oil salt

What causes interstellar dust and clouds of gas to condense into planets and stars?

what is the TRUE statement. A) 24a - 16b = 2(12a - 8b) B) 24a - 16b = 4(6a - 4b) C) Both A and B D) Neither A nor B

Which of the following is a quantitative question? Select one of the options below as your answer:. A. What do you think is the coolest thing about living in th

what is another way to write 9 x 200

It's when I'm weary of considerations, And life is too much like a pathless wood Where your face burns and tickles with the cobwebs (45) Broken across it, and o

correct the possessive Noun in the sentence Baseball has been a part of Americans history for hundreds of years.

a measurement division story problemfor 5/12÷1/6

In polar oceans, sea ice regulates the exchange of: A. heat, volume, moisture. B. moisture, salinity, heat. C. temperature, heat, moisture. D. Volume, salinity,