13x - 11y = -12
-13x -13x
___________
-11y = -13x - 12
___ ______
-11 -11
-13x -12
y = _______
-11
You can use proportions in all of these as I explained in another one of your questions. I'll post the answers if you still want them.
Answer:

Option D is the correct option
Step-by-step explanation:

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{ w ÷ 1 = w , So, I wrote 8 × w }
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Apply cross product property
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Move 15w to left hand side and change it's sign
Similarly, Move 35 to right hand side and change it's sign
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Collect like terms
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Divide both sides of the equation by -7
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Calculate
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Hope I helped!
Best regards!!
Answer:
well if theres 26 in all and 15 girls then there is 11 boys so the answer is
11:15
brainliest please
Step-by-step explanation: