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

Write an equation in the form y = mx + b for the line which contains the points (8, 25) and (1, 4).

In a few sentences, list three functions that the hindbrain is responsible for.

Given the following functions f(x) and g(x), solve (f/g)(-3) and select the correct answer below: f(x) = 6x + 8 g(x) = x - 2 A: -2 B: -1/2 C: 1/2 D: 2

describe the structure of a chromosome

7 more than 11 times a number increased by the quotient of y and z

There were five dollars is that active or passive

What's the primary purpose of a narrative essay

The endosperm is a unique tissue to ______. 1.Animals 2.Plants 3.Fungi 4.All Of The Above

What important change did the Roman emperor Constantine make in A.D. 313?

The organizational function and set of processes that creates, communicates, and delivers value to customers and manages customer relationships in ways that ben