Answer:
A. (-7 -2)
Step-by-step explanation:
You can eliminate y by multiplying the first equation by 7 and subtracting 6 times the second equation:
7(-3x +6y) -6(5x +7y) = 7(9) -6(-49)
-21x +42y -30x -42y = 63 +294 . . . . eliminate parentheses
-51x = 357 . . . . . . . . collect terms
x = -7 . . . . . . . divide by -51. This matches answer choice A.
The answer is 7 because x+3 is 10. Hope this helped
Answer: D
Step-by-step explanation:
8 costs 40 so 10 costs | 40 / 8 = ( 5*2=10) So your answer is 50 Dollars.
Answer:
-25+12 is less
Step-by-step explanation
1st picture
-25+12=-13
40+-63=-23
2nd picture
Negative
Positive
Negative Negative
To find the answers just simply do the number in a calculator for example -6+64 put that in a calculator and it will help you. figure our number 5
