Seudónimo Seudónimo

02-12-2016
Mathematics

contestada

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

Respuesta :

apologiabiology apologiabiology

02-12-2016

multiply 2nd equation by -3 and add to first

9x-3y=3
-9x-24y=51+
0x-27y=54

-27y=54
divide both sides by -27
y=-2

sub back
3x+8y=-17
3x+8(-2)=-17
3x-16=-17
add 16 to both sides
3x=-1
divide 3
x=-1/3

(x,y)
(-1/3,-2)

Answer Link

Otras preguntas

Fill in the blank in the following sentence with the appropriate preposition below. (PLEASE HELP NEED ANSWERS ASAP)

PLS HELP ME FIRST ONE TO ANSWER AND GETS IT RIGHT GETS BRAINLIEST

at what point do 3x-2=26 and 5x=7y+58 intersect?

Establishing a strong central government was one of the key issues opposed by which of the following selections? Select one: A. Tories B. Anti-Federalists C.

can someone help with this question?

The 5 fourth-grade classes at Brown Elementary raised a total of $2,462 to purchase playground equipment. Write and solve an equation that shows one way to esti

how did african americans participate in world war 1

What’s is the correct answer and show your work by step by step

Lucy has 80 bean plants, 48 tomato plants, and 16 pepper plants. She wants to put the plants in rows with only one type of plant in each row. All rows will have

This paragraph begins with one of the most famous hyperboles in American writing. A hyperbole is an overstatement or exaggeration to emphasize a point. What are