Question

0.3x-0.2y=4
0.5x+0.5y=-15/19 solve by elimination method

Answer 1

Lcm for -0.2 and 0.5 is 0.10

Answer 2

someone correct me if i'm wrong. but i got x=820/19 (43.15789474)

Answer 3

panther do you get at all what you are supposed to do here?

Answer 4

im not sure i understand this one

Answer 5

Solve by Elimination.
In Both of (0.3x and 0.5x) look for a Least Common factor. and that is (0.15x)
For (-0.2 and 0.5) the Least common factor is (0.10)

Answer 6

ok then what would i do next

Answer 7

pick one that satisfied you better.
for instance .15x is Least common factor for 0.3 and 0.5. so we multiply
(0.3x-0.2y=4)*0.5 so we end up with 0.15x
(0.5x+0.5y=-15/19)*-0.15 so we end up with x variable Negative -x0.15

Answer 8

ok so we would then eliminate x right

Answer 9

yes

Answer 10

make sure you make your calculations correctly

Answer 11

this is when we would divide or am i getting ahead of myself