radomes.openskiesproject.org
val4ovehenita
val4ovehenita val4ovehenita
  • 05-09-2016
  • Mathematics
Answered

Solve the system of equations.

3x - 4y = -10 and 5x + 8y = -2

A(1, 2)
B(2, 1)
C(1, -2)
D(-2, 1)

Verified Answer :

texaschic101
texaschic101 texaschic101
  • 05-09-2016

3x - 4y = -10....multiply by 2
5x + 8y = -2
---------------
6x - 8y = -20 (result of multiplying by 2)
5x + 8y = -2
---------------add
11x = -22
x = -22/11
x = -2

3x - 4y = -10
3(-2) - 4y = -10
-6 - 4y = -10
-4y = -10 + 6
-4y = -4
y = -4/-4
y = 1

solution is : (-2,1)

Answer Link

Related Questions

What is 1086 rounded to the nearest whole number
Simplify the radical expression by rationalizing the denominator 2 divided by the square root of 30
What type of economic utility involves changing a raw material or assembling parts to make a productO InformationO FormO PossessionPlaceTime
What details does marlowe use to create an idealized portrait of the rural life of shepherds
Which of the following distances is the longesta 0006 kilometers b 03 decimeters c 820 meters d 20000 millimeters
A statistical test to determine if the population means associated with different treatment effects are statistically different Group of answer choices a factor
What is the meaning of the root in covert A to stop B to quiet C to turn D to escape
Will an object of 220 g float or sink explain
Greg bought 2 boxes of balloons He used half of them to decorate his yard He used 40 to decorate his porch He used the rest inside his house How many balloons d
decrease 9809821 by 60000