So you need to do substitution. First solve the easier equation for 1 variable.
x+y=-1 now subtract x to get y=-x-1. Then plug this into the top equation to get 2x+7(-x-1)=2. Next distribute to get 2x+-7x-7=2. Now combine like terms to get -5x=9 so x=-5/9. Now you have to plug this back into the original equation to get y. 2(-5/9)+7y=2, so -10/9 +7y=2. No move terms around to get 7y=28/9 then divide by 7 to get y= 4/9
Answer:$25
Step-by-step explanation:
20% of 125 is $25 dollars so his commission would be $25
Those addends are in the same order on the left and right, only the parentheses have changed. That's the
Associative Law of Addition
Answer:
The answers for this on i think are B and D
Step-by-step explanation:
because it's asking you to Simplify
(5x7+7x8)−(4x4−2x8) to equal 91
and B and D were the correct choices because A is 71 and C was 88
Answer:
I am 100% sure its 4.03 x 10^7
Step-by-step explanation:
