Answer:
Addition and subtraction are inverse operations. Start with 7, then add 3 we get 10, now subtract 3 and we get back to 7.
Another Example: Multiplication and division are inverse operations. Start with 6, multiply by 2 we get 12, now divide by 2 and we get back to 6.
Answer:
the answer is -6xy
Step-by-step explanation:
#1= -4 and 2
#2= -9 and 2
#3= -10 and 4 I think you meant -14 as a sum
Answer:
2% of 70 is 1.4
1. Convert 2% into a decimal (0.02)
2. Multiply that decimal by 70 ("of" indicates multiplication)
0.02*70=1.4
Substituting (x, y) with (a, a), since we have:
3a=2a-4, which means that 3a-2a=-4, that is a=-4.
So, the point is (-4, -4).
Remark: a point which lies in the graph of an equation is a solution of that equation. So x=a, y=a satisfies the equation <span> 3y = 2x -4, which makes our substitution legitimate.
Answer: </span>(-4, -4).