T) -7x+10y=20. M) -3x+y=-2 - ,
2(8x-5y)=35(2) -1(x+y)=-6(-)
-7x+10y=20. -3x+y=-2
16x-10y=70. -x-y=6
9x=90. -4x=4
[x=10] [x= -1]
-7(10)+10y=20. -3(-1)+y=-2
-70+10y=20. 3+y=-2
10y=90. [y= -5]
[y=9]
Answer:
#1 i think is 2x7 i dont know #2 sry
Step-by-step explanation:
Answer:
OK SO IN MULTIPLYING INTEGERS
negative into negative is positive
positive into positive is positive
positive into negative is negative
Step-by-step explanation:
Answer:
11,15,19,23,27,31,35,39,43,47,51,....
This one is tricky....but I'll go for D cause your multiplying a number towards 5