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Lemur [1.5K]
3 years ago
10

Barb solved the following equation: 4(3x – 12) = 5(2x + 6)

Mathematics
2 answers:
katrin2010 [14]3 years ago
5 0

Answer:

4(3 * 39 – 12) = 5(2 * 39 + 6)

x = 39


Step-by-step explanation:

4(3x – 12) = 5(2x + 6)

(12x - 48) = (10x + 30)

12x - 10x = 30 + 48

2x = 78

2x/2 = x

78/2 = 39

x = 39

No Prob :)

Reil [10]3 years ago
5 0

<u><em>x=39 is the right answer. </em></u> First you had to add by 48 from both sides of the equation. And it gave us, 12x-48+48=10x+30+48. Then simplify, and it gave us 12x=10x+78. Next, subtract by 10x from both sides of equation. And it gave us, 12x-10x=10x+78-10x. And then simplify, and it gave us, 2x=78. You can also divide by 2 from both sides of the equation. And it gave us, \frac{2x}{2}=\frac{78}{2}. And finally, simplify and the answer is<u><em> x=39</em></u> is the right answer. Hope this helps! Thank you for posting your question at here on brainly. And have a great day! -Charlie

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