torreseli146 torreseli146

01-04-2021
Mathematics

contestada

What is the x-value of the solution to this system of equations?
Y=2/7x-1
2x + 7y = -49

Respuesta :

karkismriti176 karkismriti176

04-04-2021

Answer:

x = -21/2

Step-by-step explanation:

y= 2/7 x-1

or, 7y= 2x -7

or, 2x -7y =7

2x + 7y = -49

4x = -42

x= -21/2

y= 2/7 × -21/2 -1

= -4

Answer Link

Otras preguntas

how do you simplify fractoins

How did world war 1 contribute to the collapse of the Russian monarchy?

From the equations 7a = 4 and 7a + 4b = 12, one can conclude that b is? Please explain the work behind the solution

Identify true statements. (a) A sequence is either arithmetic or geometric. (b) An arithmetic sequence is either increasing or decreasing if common difference i

The school concert raised $1360 from the sale of 400 tickets. If adult tickets cost $5 and student tickets $3, how many student tickets were sold?How many stude

The golfer hits the golf ball. The quadratic y=-8*x^2 +48*x gives the time x seconds when the golf ball is at height 0 feet. In total, how long is the golf ball

The last of Wilson's Fourteen Points called for

what type of monkey starts with an h?

Why is the enlightenment considered the turning point in world history

From the equations 7a = 4 and 7a + 4b = 12, one can conclude that b is? Please explain the work behind the solution