quinn89 quinn89
  • 22-11-2020
  • Mathematics
contestada

x – 2y = 1
2x + 3y = -12

Respuesta :

mnoz
mnoz mnoz
  • 22-11-2020

Answer:

x= -3

y= -2

From the first one, if you add 2y to both sides you can plug that into the second one and solve for y. Then, plug y to the first one and solve for x.

Answer Link
maxalamichael maxalamichael
  • 22-11-2020
X-2y=1
X=1+2y

2(1+2y)+3y=-12
2+4y+3y=-12
2+7y=-12
7y=-12-2
7y=-14
y=-2

x-2*-2=1
x-(-4)=1
x+4=1
x=1-4
X=-3

Answer Link

Otras preguntas

Solve 5x2 + 13x + 6 = 0
Finding the proportion using the figure below
There are 12 iron-on patches in 4 packages. Each package has the same number of patches. Write a rule words for the number of packages Leah needs to buy to get
James is reading the latest book by his favorite science fiction author. The table shows the number of pages James read over different periods of time. Calculat
Compare the forms of absolutism used by Louis XIV and Tsar Peter the Great.
Write the equation of the line in point slope form that travels through the points (0,5) and (3,7)
shaded areas...............​
A chemist must prepare 700.0mL of nitric acid solution with a pH of 1.50 at 25°C. He will do this in three steps: Fill a 700.0mL volumetric flask about halfway
Which statement is true? A. Taxes are higher on short-term investments than long-term investments. B. Short-term investments are less prone to price volatilit
At December 31, 2022, the trial balance of Waterway Industries contained the following amounts before adjustment. Debit Credit Accounts Receivable $185,100 Allo