paddikakes55 paddikakes55

04-06-2017
Mathematics

contestada

2x - 3y = -12
y = 9 - x
Solve by substitution

Respuesta :

azhangstuy azhangstuy

04-06-2017

2x - 3(9-x) = -12

2x-27+3x=-12

5x-27=-12

5x=15

x=3

y=9-x
y=9-3

y=6

x=3
y=6

Answer Link

Otras preguntas

Under what circumstances would you spray a pesticide in a classroom?

complete the square and write in function form f(x)=x^2+5x+3

what are the different forms of relationships throughout romeo and Juliet

jumlah 3 bilangan ganjil berurutan adalah 159, selisih bilangan terbesar dan terkecil adalah

How to find the missing length of a triangle with angles and sides?

A recent study of 100 employees from six departments of a major corporation found 65% to be sleep deprived. the researchers concluded that the majority of corpo

1 penny has a mass of 4 grams and is 1.55 millimeters thick. How much mass will a stack of 20 pennies tall have?

I need help on number 7

A 250-mL glass bottle was filled with 242mL of water at 20°C and tightly capped. it was then left outdoor overnight, where the average temperature was -5°C. pre

The figure illustrates the apparatus for a tightrope walker. Two poles are set y = 50 feet apart, but the point of attachment P for the rope is yet to be determ