m6garcia12 m6garcia12
  • 13-03-2018
  • Mathematics
contestada

solve the system of equations by substitution y=5x-13 and 5x+2y=19

Respuesta :

Аноним Аноним
  • 13-03-2018
y = 5x - 13 ----------- (1)
5x + 2y = 19 --------- (2)

Sub (1) into (2):

5x + 2(5x -13) = 19
5x + 10x - 26 = 19
15x = 19 + 26
15x = 45
x = 3 -------- sub back into (1)
y = 5(3) - 13
y = 15 - 13
 y = 2

Ans: x = 3, y = 2
Answer Link

Otras preguntas

what is the highest common factor of 33 and 93
if rounded to the nearest dime what is the greatest amount of money that rounds to $105.40? what is the least amount of money that rounds to $105.40? Explain yo
How is a cytoskeleton like your skeleton
how do you know whether to perform a linear regression or a quadratic regression for a given set of data
Simplify 1 over 2/3 =
how many days in 50 years
round to the nearest tenth 8.642
Select all that apply. Plantation children might be instructed by the following: village school master an indentured servant the father the mother
force is measured in newtons, which is a derived unit. what is one newton in terms of the fundamental units of measurement
Which kind of complement is the underlined word? Please serve everybody appetizers before 6 o'clock.   A. indirect object