Question

Solve the system by substitution. x - 3y = 42 and x - 6y = 8

Answer 1

ENQ 1 x - 3y = 42
ENQ 2 x - 6y = 8

what does x equal if u rearrange only eqn 2?

Answer 2

do not just give the answer...jack is trying to explain it

Answer 3

im sorry i did it wrong it
x - 3y= 4
2x - 6y = 8

Answer 4

subtract those two equation and you will get the value of y then put value of y in any equation to get value of x...

Answer 5

so much for explaining it

Answer 6

^^^ or that ;D

Answer 7

those two lines are coincident so there will be infinite solutions

Answer 8

thanks ^

Answer 9

no prob.. (:

Answer 10

6x + 3y = -6
2x + y = -2

Answer 11

what about that equation?

Answer 12

still equations are coincident

Answer 13

EQN 1 6x + 3y = -6
EQN 2 2x + y = -2

put equation 2 in terms of y = ________ ?
(ie rearrange the equation until you get y = something x)

then substitute that y value into the other equation

Answer 14

thanks both of yall