OKEKE OKEKE
  • 17-08-2020
  • Mathematics
contestada

solve the simultaneous equations
2p- 3q= 4
3p + 2q= 9​

Respuesta :

schand schand
  • 17-08-2020

Answer:

q = 6/13, p = 35/13

Step-by-step explanation:

3p + 2q = 9

2p - 3q = 4

_________ (subtract the two equation from each other.)

p + 5q = 5

p = 5 - 5q

2(5 - 5q) - 3q = 4 (substitute value of p into equation)

10 - 10q - 3q = 4

10 - 13q = 4

-13q = -6

q = 6/13

3p + 2(6/13) = 9 (substitute value of q into equation)

3p + 12/13 = 9

3p = 105/13

p = 35/13

Answer Link

Otras preguntas

Which of the following is NOT a recommended change in physical activity for aging individuals? A. taking a longer time to warm up and cool down B. being cautiou
Someone please help ASAP will give brainliest
how did the roman empire gain consolidate and maintain power
What is the value of (-3+3i)+(-2+3i)
Jimmy is trying to factor the quadratic equation $ax^2 + bx + c = 0.$ He assumes that it will factor in the form \[ax^2 + bx + c = (Ax + B)(Cx + D),\]where $A,$
I WILL GIVE THE BRAINLEST HURRY PLEASE
Besides the availability of food and water what factors might affect an organism life expectancy
What’s the domain and range
A sprinter can run 120 meters in 10 seconds. what is his average speed
In what way does an earthquake provide evidence about the layers of Earth? Use complete sentences to write your answer.