alfonso7guzman7 alfonso7guzman7
  • 03-10-2020
  • Mathematics
contestada

Subtitute 2x+y=7 and 3x-y=8

Respuesta :

taaaaan taaaaan
  • 03-10-2020
2x + y =7 (1)
3x-y=8 (2)

(1) + (2)

5x = 15
x = 3

Answer Link

Otras preguntas

The graph of the function f(x)= x2 − 4x + 6 is shown here. What is its axis of symmetry? A. x = 0 B. x = 2 C. x = 6 D. x = -2
of a loaf of brown bread costs R6, how much will 4 halves cost?​
Find the product. 1.(a + 3)(a - 4) 2. (x - 3)2 3. (2a – 62)(a + 462) 4.(x - 5)(x2 + 4x - 6)
.formular for Charles' law​
What is also known as computer Network?
Geometry, please answer question ASAP
Step by step plz on how to do this
The Whitmoer Co. is currently issuing both 20-year and 30-year bonds at par. The bonds pay 7 percent annual interest and have face values of $1,000. You decide
summer school is over, and I'm feeling self-destructive. Take all of my points and have a good night. 3/3
31. Explain what the program does. Write out the output 20 PRINT "Hellooo00000000000, world!" 30 PRINT "I'm learning about commands in BASIC." 40 PRINT 'This te