2 years ago

Which expression is equivalent to 5 +(-3)(6x-5)

Mathematics

2 answers:

Oduvanchick [21]2 years ago

5 0

Answer:

C. NONE OF THE ABOVE

FROM KHAN ACADEMY

Step-by-step explanation:

SORRY HAVE CAP-LOCKS AND DO NOT KNOW HOW TO TURN IT OFF

Totally don't know how to turn turn it off

nadya68 [22]2 years ago

3 0

Answer:

C. None of the above

Step-by-step explanation:

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1) 5x-2y=4. 2) 3x-5y=13 x-2y=5<br>3x+y=9

Natali [406]

$\left\{\begin{array}{ccc}5x-2y=4\\3x+y=9&/\cdot2\end{array}\right\\+\left\{\begin{array}{ccc}5x-2y=4\\6x+2y=18\end{array}\right\\----------\\.\ \ \ \ \ 11x=22\ \ \ \ /:11\\.\ \ \ \ \ \ \ x=2\\\\3\cdot2+y=9\\6+y=9\\y=9-6\\y=3\\\\Answer:x=2;\ y=3$

$\left\{\begin{array}{ccc}3x-5y=13\\x-2y=5\end{array}\right\\\left\{\begin{array}{ccc}3x-5y=13\\x=2y+5\end{array}\right\\\\substitute:\\\\3(2y+5)-5y=13\\6y+15-5y=13\\y=13-15\\y=-2\\\\x=2\cdot(-2)+5=-4+5=1\\\\Answer:x=1;\ y=-2.$

5 0

2 years ago

I would appreciate if someone could help me with this problem and answer it I will give you a brainlist :)

aev [14]

To me from the picture, all sides look the same. so I’m guessing it’s probably 11

8 0

2 years ago

Read 2 more answers

2x^2y^5 + 4xy^3 please answer

irina [24]

Answer:

its B, the 2xy3...thingy