When we do the additive inverse property...we want to end up with a 0...so the inverse of 7 is -7 and the inverse of -8 is +8....we now have our new expression
-7 + 8
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-7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8
Answer:
Step-by-step explanation:
Answer in the attachment
Plug in the first equation into the he second equation
3x-(2x+7)=-9
3x-2x-7=-9
x-7=-9
x=-2
plug in x=-2 into the first equation
y=2(-2)+7
y=-4+7
y=3
answer: (-2,3)
Answer:
3
Step-by-step explanation:
20*.15=3