herandylucas
herandylucas herandylucas
  • 05-02-2014
  • Mathematics
contestada

Substitution how do u do it??

Substitution how do u do it class=

Respuesta :

crisforp
crisforp crisforp
  • 05-02-2014
3x-(2x+7) = -9 <=> x -7 = -9 <=> x = -2; y = 2(-2) + 7 = 3.
Answer Link

Otras preguntas

Pls give me answer Initially, a box contains three white and five red balls. Balls are drawn at random from the box. Whenever a red ball is drawn, it is placed
convert the following numbers into scientific notation 3,400= 0.000023= 4.50= 1,000,000= 0.00671=
is 9x=63,x=7 true or false​
What are the possible zeros for f(x) equals X to the third power minus 2X to the second power minus 4X +15
The doctor earned just enough to live a/an _____ life.
find the perimeter.
RACHEL: Hi everyone, Today we are going to talk about the short story 'In My Dream by Sarah Parker. Let's just jump right in, 0.K.? What do you think the recurr
A spring with constant 185 N/m is compressed 1.38 m with a mass of 0.53 kg. How fast is it going 2.5 m above the ground?
Mama slaps Beneatha because... Select one: a. she spent it on crack cocaine. b. she lost all the money to a scam. c. she did not believe in God. d. she cursed G
Sampling is used in the situationsA. Cooking rice in an utensilB. Purchase of food commodity fromC. shopkeeperD. All the aboveE. Blood test of the patients​