tonysanchezgordillo tonysanchezgordillo
  • 17-01-2020
  • Mathematics
contestada

15. 3x – 4y = -1
5x + 2y = 7

Respuesta :

shanselvan shanselvan
  • 18-01-2020

Answer:

x = 1, y = 1

Step-by-step explanation:

3x - 4y = -1

5x + 2y = 7

If we multiply the whole second equation by 2, we get:

10x + 4y = 14

Adding this to the first equation:

10x + 4y + 3x - 4y = 14 - 1

13x = 13

x = 1

Applying this to the second equation:

5 (1) + 2y = 7

2y = 2

y = 1

Answer Link

Otras preguntas

After the passage of the Civil Rights Act, civil rights activists wanted *o • overturn the Fifteenth Amendment. overturn the Twenty-Fourth Amendment. elect John
7 6 5 4 3 2 Overview 1 Question Progress Homework Progress 19 / 26 Marks X: y = 5:3 and x + y = 56 Work out the value of x-y
Slope is -2 and the y-intercept is (0, -8)
in elizabeth loftus’ study of memory reconstruction in which students viewed films of an automobile accident, the major influence on recall was the
please help me thank you
A researcher is interested in understanding whether the number of people in a room affects how much a person eats. During the experiment, the researcher varies
what's the answer when 0.95 when it's multiplied by 0.01?​
How did Europe respond to the American tariffs on goods? A.They put their own tariffs on their goods as well and there were not as many buyers for the American
A researcher performs a series of pilot studies to evaluate whether a measurement tool produces consistent results. This is an evaluation of:
g(6) = 5b - 9 h(b) = (b − 1)2