Question

2x-4y=-14
-x-6y=-5 ,solve by substitution method. can someone show me step by step how to work it out please

Answer 1

2x-4y=-14-(1)
-x-6y=-5-(2)
Divide (2) by -1
Then u get
x+6y=5
subtract 6y both sides
x=5-6y-(3)
Substitute this in (1)
then u get
2(5-6y)-4y=-14
2*5-2*6y-4y=-14
10-12y-4y=-14
10+14=12y+4y
24=16y
y=24/16
y=6/4
Substitute the value of y in (3)
x=5-6*6/4
=(5*4-6*6)/4
=(20-36)/4
=-16/4
=-4
is it clear?

Answer 2

yess but for the Y i saw that the answer is 3/2??

Answer 3

yup it is.
y=6/4
=3/2

Answer 4

i got that from the back of the book

Answer 5

ok got it thank you! :)

Answer 6

yw.:)