medswilson medswilson

21-05-2015
Mathematics

contestada

solve each system by elimination> 9x-3y=3: 3x+8y=-17

Respuesta :

hunaifirst hunaifirst

21-05-2015

9x-3y=3. |x3| 27x-9y=9
3x+8y=-17. |x9|27x+72y=-153
--------------------------------- -

-81y=162
y=-2

9x-3y=3
9x-3(-2)=3
9x+6=3
9x=3-6
x=-3/9
x=-⅓

x=-⅓
y=-2

Answer Link

Otras preguntas

explain how you can identify fractions that are equal to one

Jenny plans to have two children but doesn't know if they will be boy-boy, girl-girl, or boy-girl. What is the probability that she will have two boys? 0.5 0.

Fish that have a compressed shape are slender and are often found living on coral reefs or in rocky areas. What is a benefit of this body shape?

Which power is exclusive to the Senate?

Who divided the Roman Empire into two sections to make it easier to control? A. Cicero B. Constantine C. Diocletian D. Caesar Augustus

Mike's closing costs will add up to 4 percent and he'll make a down payment of 20 percent on a house that costs $210,000. Over the life of his loan, he will pay

In Old Yeller: When does Mrs. Coates first demonstrate that she recognizes Travis is taking on his father's role?

What is the solution set for the given inequality if the replacement set for r is {5, 6, 7, 8, 9, 10}? 2r ≤ 3r – 8 A. {8, 9, 10} B. {9, 10} C. {5, 6} D. {5, 6,

Bradford has an aquarium with a base that is 22 inches times 12 inches and a height that is 15 inches. What is the volume of the aquarium? Would the volume of t

what is the degree measure of one and a half full turns ??