Question

guys i really need your help with this one, each time I get a different answer and I don't know what im doing wrong I need you geniuses to help me...pretty please....
solve by substitution
15x-20y=1
15y=-2+5x

Answer 1

first seperate x from first equation,
then put the value of x in the second equation so that you have only y,
and solve y, then find the value of x from any equation

Answer 2

its all crazy e, i get all kinds of fractions and decimals
ok look

Answer 3

y=1-15xover 20

Answer 4

y=1+5/4x

Answer 5

x = (1+20y)/15

and then

15y = -2+5*(1+20y)/15
=> y = -1/5

and so on

Answer 6

no y=1+3/4x

Answer 7

ok im gonna try but I do think I got that answer already yup -1/5 let me rerererertry it lol