Marissababy
Marissababy Marissababy
  • 03-05-2017
  • Mathematics
contestada

8x-9y=19 4x+y=-7 How Do I Do This Type Of Math

Respuesta :

mreijepatmat
mreijepatmat mreijepatmat
  • 03-05-2017
8x-9y=19
4x+y=-7
 Multiply all terms of the 2nd by (9)===>  36x + 9y= 63

add (36x  9y=  63) to the 1st ===> 44x+0y = -44 ===> x=-1
replace x by this value in any of the equation & you'll get y=-3
Answer Link

Otras preguntas

You have 10 apples in a basket. 10 children come to you and each one of them ask for an apple. You want to give all the apples to each one of them, but still ke
What is SADD? How has the organization changed since its founding?
WHAT IS THE FULL FORM OF MILLION
a recipe calls for cookies for 3 1/4 cups of. sugar.amy already puts in 3 1/9 cups.how many more cups does she nees t put in
How do I solve 2 2/7 - 1 1/3
How do I solve 2 2/7 - 1 1/3
You are trying to save $20 a week to buy and use cd player. During the last 4 weeks you have saved $35, $15, $10 and $12. How much do you need to save this week
What is three ratios equivalent to 18:4
Sixty miles per hour is how many feet per second
How do you write 7,330,968 in expanded form