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Andreas93 [3]
2 years ago
11

Which equation is equivalent to 3[x + 3(4x – 5)] = 15x – 24?15x – 15 = 15x – 2415x – 5 = 15x – 2439x – 45 = 15x – 2439x – 15 = 1

5x – 24?
Mathematics
1 answer:
Kay [80]2 years ago
6 0
Begin inside the brackets always.  Your first simplification will be to distribute the 3 into the parenthesis, resulting in this: 3[x+12x-15]=15x-24.  We can simplify a bit more now inside the brackets like this: 3[13x-15]=15x-24.  Now distribute the 3 to get 39x - 45 = 15x - 24.  That's your answer. The third one out of the 4 you have there.
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