bmgtcreative bmgtcreative
  • 02-05-2018
  • Mathematics
contestada

system of equations

y=2x-3
x+y=18

Respuesta :

mamercier21 mamercier21
  • 02-05-2018
2x-3=-1x+18
+1x   +1x
3x-3=18
   +3  +3
3x=21
divide both sides by 3
x=7

Answer Link

Otras preguntas

what is sqrt p^5 q^10 expressed in simplified form?
Which of the 5 pillars of Islam refers to giving to poor and needy
plz give awnser 50 pointsquestions 5 and 9
A 535 kg roller coaster car began at rest at the top of a 93.0 m hill. Now it is at the top of the first loop-de-loop. This roller coaster’s track is nearly fr
The eastern roman empire, centered in constantinople (modern day istanbul) is also known as the
A rectangle measures 3 feet by 24 inches. Find the area of the rectangle in square feet.
how much tax you need to pay on a taxable income of 40,000
Choose the most appropriate word (s) to complete the following sentence. It would be faster for a human resource manager to use a (an) to alert employees about
jesse wants to buy some lettuce that sells for $0.69 per pound. a single head of lettuce weighs 13 ounces how much will one head of lettuce cost
what is 66% of 740kilometers