jbethbegaye jbethbegaye

22-11-2019
Mathematics

contestada

-7x + 4y = -6
2x - 5y= 21

Respuesta :

alishedd83 alishedd83

22-11-2019

-7x + 4y = -6

2x - 5y= 21

Make it so x's are equal

-14x + 8y = -12

-14x - 40y = 147

Subtract

-32y = -169

Divide

y = 5.28125

Plug in the y value

2x - 5(5.28125) = 21

Simplify

2x -26.40625 = 21

Add

2x = 47.40625

Divide

x = 23.703125

Hope this helps! ;)

Answer Link

Otras preguntas

where does an element take its identity from?

For two consecutive numbers, five times the number that is 3 more than four timse the greater number. What are the numbers?

Convert this to a positive exponent: x^-4

someone help me with these three please

A person rides a bike from home to a restaurant, eats a meal, and then rides home. Which graph could represent this situation?

why material selection is important to design and manufacturing?

What was Roosevelt's strategic reason for commissioning the Great White Fleet and sending it round the world?

Which is NOT an example of continuous data? A) time it takes to cut the grass B) Lifetime (in hours) of a flashlight battery C) weights of dogs in animal shelt

A chocolate chip cookie, an oatmeal raisin cookie, and a sugar cookie come stacked on top of each other in a package. The package is 2 inches tall, and the cook

Solution of 1/5 m = -1