gretaggustafson gretaggustafson

01-04-2020
Mathematics

contestada

Solve question 3 (a and b)
— solve each system of equations by elimination.

Solve question 3 a and b solve each system of equations by elimination class=

Respuesta :

ghanami ghanami

01-04-2020

Answer:

Step-by-step explanation:

hello :

6x+5y=-20.....(*)

-6x-10y=25.....(**)

add(*) and(**) : -5y=5 so y= -1

multiply (*) by 2 : 12x+10y=-40 ...(***)

now add(**) and (***) : 6x=-15 so x = -15/6 = -5/2

Answer Link

Otras preguntas

What is the ph of a 4.8 m pyridine solution that has kb = 1.9 × 10-9? the equation for the dissociation of pyridine is?

un animal associé avec pâques

If y varies directly as x and y = 14 when x = 7, find x when y is 30

Which reflection rule, if any, can be used to prove that rectangle A(-8, -3), B(-2, -3), C(-2, -6), D(-8, -6) and rectangle A'(8, -3), B'(2, -3), C'(2, -6), D'

Find the slope of a line that passes through (3, 4) and (-2, 4). undefined 0 8/5 5/8

the map shows that the allied forces

What was the statue of US workplace safety laws in 1900

The French revolution grew more violent mainly because radicals reacted to A) prisoners running rampant after release B) rumors of foreign intervention to end

use the dot product to find |v| when v=(2,7)

What was a reason behind the tensions in Korea? a. both north and south were run by different government c. both north and south practiced different religions b