jessijane88 jessijane88
  • 02-02-2018
  • Mathematics
contestada

solve and verify each of the following systems of linear equations 4y=3x+7 and 9x+4y-139=0

Respuesta :

Аноним Аноним
  • 02-02-2018
rearranging the first equation:-

3x  - 4y = -7 
9x + 4y = 139

12x = 132
x = 132/12 = 11
Substituting fro x in the second equation:-
9(11) + 4y = 139
4y = 139 - 99 = 40
y = 40/4 = 10

Answer x = 4 , y = 10.




Answer Link

Otras preguntas

please help !! will mark brainly need done
How old was john f Kennedy?
How does concentration affect boiling point of a solvent?
8^1 + 9^2 +9^2+8^1 = ?
Which is the simplified form of pº? - | оооо o- СО
a pseudoscorpion on the back of a harlequin beetle Which type of relationship is formed when a pseudoscorpion is dispersed by a harlequin beetle
Help me with this, I pick C but I'm really not sure
Consider the work shown for 99÷7. What does the highlighted 1 represent?
In the late 1990s, several studies claimed there was a direct link between growing rates of autism and the presence of low doses of mercury used to preserve inf
True or false: Hitler believed that Germany would have won World War I if the military hadn't been "stabbed in the back" or betrayed by the civilian leadership