wyattrhinehart18 wyattrhinehart18

14-10-2019
Mathematics

contestada

2x+8y=54
x+9y=67
Solve the system by subtitution

Respuesta :

fluffyowo fluffyowo

14-10-2019

Step-by-step explanation:

2x +8y = 54

x + 9y = 67

x = 67 - 9y

2(67-9y) + 8y = 54

434 - 18y + 8y = 54

434 - 10y = 54

10y = 54 - 434

10y = -380

y = -38

Answer Link

Otras preguntas

(dads age: 28 years old when cindys age : 2 years old .)( dads age: 36 years old when cindys age:10 years old .) (dads age : ? when cindys age :18 yrs old

What were the Nuremberg Trials? trials in which Nazi leaders were charged with “crimes against humanity” trials in which leading Nazi generals were accused of h

To download movies off the internet you must pay 1.99 per movie, plus onetime fee of 5.50. Write an expression to show the total cost to download x movies. :3 (

Solve the equation. Write the answer in terms of the natural logarithm. e^(9x+8)=14

15x - 12y =13 30x +9y =4 whats the value of x

(dads age: 28 years old when cindys age : 2 years old .)( dads age: 36 years old when cindys age:10 years old .) (dads age : ? when cindys age :18 yrs old

the perimeter of the rectangle is 86 inches. if the length is 3 inches longer that the width, find the width of a rectangle.

Which of the following does not contribute to a poem's sensory descriptions

what is the sum of zeros of the function y=6x^2-x-2 ?

why did french merchants help set up settlements in north america