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Mathematics
Alexia
1 May, 21:51
What is the value of 12 (3x + 5x), when x = 7?
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Malachi House
1 May, 23:26
0
642
Step-by-step explanation:12 (3*7+5*7)
12 (21+35)
12*56=642
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Martha Frost
1 May, 23:53
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I'm pretty sure that it's 672
Step-by-step explanation:
Ok, so all you gotta do is replace x with 7. so then it would look like 12 (3 (7) + 5 (7)). then you multiply whats inside the parenthesis so that you get 12 (21+35). then you add, 12 (56). then you just multiply.
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