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maw [93]
3 years ago
15

9.

Mathematics
2 answers:
wariber [46]3 years ago
7 0
9.
6y+4=8+2y+2y
Combine like terms
6y+4=8+4y
Get like terms on the same side, subtract 4 from both sides to get
6y=4+4y
Subtract 4y from both sides to get
2y=4 IS the answer (even though it can be simplified further, that answer isn't one of the choices so 2y=4 is the equation simplified.)

10.
Step 2 was the mistake when you distribute a number you don't add (which is what they did to get 5x) you multiply to get 6x. So the correct step 2 would be
6x-8=12+2x
Becuase of the distributive property.

Hope this helped!



mars1129 [50]3 years ago
4 0
Question 9:

<span>6y + 4 = 8 + 2y + 2y

6y + 4 = 8 + 4y

6y - 4y = 8 - 4

2y = 4

y = </span>\frac{4}{2}

y = 2

Hence, the answer is C.

Question 10:

<span>2(3x – 4) = 8 + 2x + 4

6x - 8 = 12 + 2x

6x - 2x = 12 + 8

4x = 20

x = </span>\frac{20}{4}

x = 5

Hence, the answer is B.
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