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3 years ago

2(3a + 6) = 4(a - 2)

Mathematics

2 answers:

Leviafan [203]3 years ago

6 0

Answer:

a = -10

Step-by-step explanation:

Bumek [7]3 years ago

4 0

Answer:

(2*3a+6*2)=(4*a-4*2)

(6a+12)=(4a-8)

(6a-4a)=(12+8)

(2a)=(20)

a=20/2=10

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So I'm going to assume that this question is asking for non extraneous solutions, or solutions that are found in the equation and are valid solutions when plugged back into the equation. So firstly, subtract 2 on both sides of the equation:

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Now we are going to be factoring by grouping to find the solution(s). Firstly, what two terms have a product of 6x^2 and a sum of -5x? That would be -3x and -2x. Replace -5x with -2x - 3x:

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