Question

solution again!
2x-y=-7
4x-y=-4

Answer 1

Subtract those 2 equations, what you get ?

Answer 2

multiply first equation by 2 and subtract both equations

Answer 3

y=18?

Answer 4

y=10 and x=3/2

Answer 5

use substitution method

Answer 6

can you show me how you got that? this stuff confuses me. seem to always to it wrong

Answer 7

take first equation 2x-y=-7

Answer 8

k

Answer 9

2x=-7+y
y=2x+7.......(1) put value of y in second equation

Answer 10

ll be 4x-(7+2x)=-4

Answer 11

4x-7-2x=-4

Answer 12

2x=7-4

Answer 13

x=3/2