Question

can you show me step by step how to put these two two equations into y=mx+b form? :

3x + y = 9
6x + 2y = 18

Answer 1

3x + y = 9
0 + y = -3x + 9....

.anytime you want to get rid of a term bring it to the other side as a neg.

Answer 2

6x + 2y = 18
0 + 2y = -6x + 18

now divide both sides by 2

y = -3x + 9

Answer 3

thanks!

Answer 4

just use the formula of it. transfer the y to the left and transfer the 3x next to it but change the sign because your transposing it and then transfer last the 9 but do not change the positive sign of it because it's still positive. that's all i know, sorry for the long reply.