Hey there, first you need to know the integers rules. So, how you can see a negative times a positive is negative. So -5 x 1 = -5. -5 x 11 = -55. -55 x 4 = -220
Answer:
Step-by-step explanation:
-2x<-4
x=2
-2×2<-4
-4<-4
which is not true.
Hence x=2 is not a solution.
If it’s a negative equation is should be -20.8 otherwise it’s 4.2
Answer:
Last one:
2 x + 4 y = 6. 3 x minus 4 y = 9.
Step-by-step explanation:
2x + 4y = 6
3x - 4y = 9
4y = 3x - 9
2x + 3x - 9 = 6
5x = 15
x = 3
4y = 3(3) - 9
4y = 0
y = 0
Only one solution, which is (3,0)