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irinina [24]
3 years ago
15

Solve for x. plz need help​

Mathematics
1 answer:
IgorC [24]3 years ago
7 0

Answer:

d

Step-by-step explanation:

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If 4x+7=12 what is the value of 8x+3
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There is actually 2 ways to solve this, I will show you both.

The first is obvious, solve for x in the first one, and plug it into the 2nd one and get the answer

4x + 7 = 12

4x = 5

x = \frac{5}{4}

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The 2nd option is to manipulate the 4x + 7 to be 8x + 3

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start by moving the 7 over

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multiply both sides by 2

8x = 10

and add 3 to both sides

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Step-by-step explanation:

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