ambmundle ambmundle
  • 01-03-2017
  • Mathematics
contestada

how to use substitution for 4x+3y=13 and x+y=4

Respuesta :

wolf1728
wolf1728 wolf1728
  • 04-03-2017
A) 4x + 3y = 13 
B) x + y = 4
B) x = 4 -y Then we substitute this into Equation A

A) 4 (4-y) + 3y = 13
A) 16 -4y +3y = 13
A) -y = -3
y = 3
x = 1

Answer Link

Otras preguntas

Which verb form correctly completes the sentence? No pienso que ella ____ la letra de la cancion? A) recuerdes B) recuerde C) recuerden D) recordemos
where was (Lord Dunmores war) location
three co-workers want to fill a friends office with balloons as a joke.The room is 8ft high,9ft long,and 11ft wide.of 3 balloons fill 1 cubic foot how many ball
Suma a doua numere este 2322,iar diferenta este 2306.afla cele doua numere reprezentand grafic
Where will chlorophyll be found in the chloroplast? A. in the stroma B. in the inner membrane C. in the thylakoid membrane D. in the intermemb
What nucleotide pairs with T? With C?
What is 1178 divided by what equalls 19
Uprisings in Paris that protested government attempts to silence critics in 1848
Who made the game named soccer
why are large astronomy whole body such as planets and stars round