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prohojiy [21]
3 years ago
15

Which of the following are solutions to the equation below? Check all that apply.

Mathematics
1 answer:
Vesna [10]3 years ago
5 0

(3x + 4)2 = 14

(3x + 4)2 means that 2 will multiply both 3x and 4

2 * 3x = 6x 2 * 4 = 8

6x + 8 = 14

Move +8 to the other side of the equation

6x = 14 - 8 Note : Moving +8 to the other side will change the sign in front of it, that is from + to -

6x = 14 - 8

6x = 6

Divide both sides by 6 because of the 6 beside the x : 6x

6x/6 = 6/6

x = 1

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Answer: x=-10

Step-by-step explanation:

Let's solve your equation step-by-step.

6.2x+8=3(1.4x−4)

Step 1: Simplify both sides of the equation.

6.2x+8=3(1.4x−4)

6.2x+8=(3)(1.4x)+(3)(−4)(Distribute)

6.2x+8=4.2x+−12

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Step 2: Subtract 4.2x from both sides.

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Step 3: Subtract 8 from both sides.

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Step 4: Divide both sides by 2.

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