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 the mathematical relationship between the independent and dependent variables? Justify your answer.
How do proteins help condense chromosomes?
How long would it take a plane to fly 1,054 km with an average speed of 886 km/h?
Which is the best definition of mathematical proof ? A- statements in any order that show that an assertion is true B- a paragraph that always has three parts
Rewrite 32 +68= 100 using the Commutative Law of Addition
Could you do this for me
how much radiation exposure in abdominal ct scan with contrast
Color in the grid to represent the fraction 25/100
Write a Comparative Writing on Summer vs Winter
Which of the following is the equation for the graph shown?