Marinzu Marinzu
  • 24-02-2018
  • Mathematics
contestada

Linear Combination (Show all work and write steps.)

2x - 3y = 13

x + 2y = -4

Respuesta :

creeds25
creeds25 creeds25
  • 05-03-2018
2x-3y=13 Equation 1
x+2y=-4 Equation 2
Solving by substitution method.
Isolate x from equation 2.
x=-2y-4
Substitute value of x in equation 1.
2(-2y-4)-3y=13
-4y-8-3y=13
-7y-8=13
-7y=21
y=-3
Now substitute value of y in x=-2y-4
x=-2(-3)-4
x=6-4
x=2

Answer: (x,y)= (2,-3)
Answer Link

Otras preguntas

Is bac=lmn a valid congruence statement
When both supply and demand shift to the left, the equilibrium Group of answer choices quantity is indeterminate. price always falls. quantity always falls.
What did the two main compromise of the constitution convention affect the government
You are a network administrator for your company. A frantic user calls you one morning exclaiming that nothing is working. What should you do next in your troub
38 POINTS HELP FAST What is the correct answer? (It’s not A)With explanation please.
Calcium Carbonate reacts with dilute hydrochloric acid. The equation for the reaction is shown. CaCo3 + 2Hcl = Cacl2 + H2O + Co2 1 g of calcium Carbonate is
Which of the following is not a true statement about seed bearing plants? The wind and animals can plant the seed in different locations. Some seed bearing plan
how does development gather speed​
help me answer this please!!!
List the things you produce for trade in abundance and why and the things you need to trade for and why.