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

A Narrative essay on I wish I had listened to my mother ​
Find the quotient and the remainder
WILL GIVE BRAINLIEST IF ANSWERED FAST!!!
how do the boys feel about the idea of santi visiting medellin
You borrow $12 from a friend and pay back $8. To help you understand your finances, evaluate the following expression: -12+8
the ratio between the lengths of the edges of two cubes are in the ratio 3:2. find the ratio between their total surface area
What is the weight of an empty bottle?
30% of the people at a concert are female. 1295 of the people at the concert are male. Work out the number of people at the concert who are female.
One of the acute angles of a right triangle is 36 degrees. Find the other acute angle.
One of the acute angles of a right triangle is 36 degrees. Find the other acute angle.