mattiemeredith5 mattiemeredith5

02-07-2020
Mathematics

contestada

Solve the system by substitution. In the space provided, type the answer without any
spaces between the letters, numbers, or symbols.
3. x - y= 12
x + y = 18

Respuesta :

alishoaibm2004 alishoaibm2004

02-07-2020

Answer:

x=15,y=3

Step-by-step explanation:

x-y=12

x+y=18

now,x=12+y

substituting in x+y=18

(12+y)+y=18

12+2y=18

2y=18-12

2y=6

y=6/2

y=3

now,x=12+y

so,x=12+3

x=15

Answer Link

Otras preguntas

What is the correct definition of motif? A. an idea or object that recurs in a text B. the central idea or thesis of a text C. a universal idea explored in a

business buying often involves long-term relationships with suppliers. How does this affect buying behavior

Please help me with this

how many x-intercepts does the graph of y=4x^2+5x+2

How many terms does the polynomial 4x2+3x contain?

2r-12 = 12-10r whats the answer( i need to get enough characters thats why i

Maryann is a nurse who sees many patients every year. She is alert to the behaviors that are harmful to her patients. What behaviors most contribute to chronic

What numbers are multiples of 9 and factors of 36?

which line supports the infernce that oedipus is a proud man? i would be a hard hearted man indeed i shall assist uou willingly in every way why are you sitting

Please help me out please