salvatorestefa salvatorestefa
  • 01-02-2021
  • Mathematics
contestada

solutions to 2-variable equations y=-2x-5

Respuesta :

dtorres4546
dtorres4546 dtorres4546
  • 01-02-2021

Answer:(1, -3).

Step-by-step explanation:

If y=2x-5 is equation (1) and 4x-y=7 is equation (2), then substitute equation (1) in equation (2):

4x - (2x - 5) = 7

4x - 2x + 5 = 7

2x = 7-5

2x = 2

x = 1

Now substitute the value of x in equation (1) to find the value of y:

y = 2 (1) - 5

y = 2 - 5

y = -3

Answer Link

Otras preguntas

Which two triangles are similar?
Many places in Louisiana have a 10% sales tax. Talal buys a coat for $45 and has a 10% coupon that he uses. After that, he pays the 10% sales tax. Calculate how
Spencer Co. has a $420 petty cash fund. At the end of the first month the accumulated receipts represent $65 for delivery expenses, $215 for merchandise invento
Mention 3 ways in which women tried to fight discrimination​
Help please, i need it asap
Write the balanced NET IONIC equation for the reaction that occurs when ammonium bromide and sodium hydroxide are combined. This reaction is classified as
Find the mean of the weight of rocks: 4 lbs, 6 lbs, 4 lbs, 5 lbs, 9 lbs, 8 lbs 3
A personal identification number (PIN)consists of four digits. Consider thePIN 0005 equal to the number 5, etc. Findthe probability that a PIN number is:a equa
HELP PLEASE DONT MIND THAT ANSWER CHOICE
(+5)+(-2)+(+20) solve