Answer: 2((x+y)-21)
Calculation/Explanation:
Twice the sum of x and y decreased by 21 means that you must add x and y first before decreasing by 21. The last step is to double the whole equation that we just performed.
Answer:
(-5,2)
Step-by-step explanation:
It alogns with negative 5 on the X axis, and positive 2 on the Y axis, meaning its written as (-5,2)
Answer:(5,3)
Step-by-step explanation:
solve for the first variable in one of the equations then substitute the result into the other equation
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Answer: D. 32
Step-by-step explanation: 64^(5/6)=32 just trust me