Simplify 8(R + 6) - 2R

Mathematics

1 answer:

navik [9.2K]3 years ago

3 0

8(R + 6) - 2R, 8R + 48 - 2R, The result is 6R + 48

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dolphi86 [110]

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First, on the left side, you have "x" and "8x": You can always add 2 numbers with the same variable, so you have 1 number: x + 8x = 1x + 8x = (1+8)x = 9x

So we get:
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Now subtract 11 from both sides (You can't do any operation if you don't do it both sides), so you can get the variable alone on the left side, and the numbers on the right side:
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9x + 11 - 11 = 29 - 11
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Now divide both sides by 9, so you can transform the coefficient of x to one, and have the numeric value of x on the right side:
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You can recheck your answer (very important):
x + 11 + 8x = 2 + 11 + 8*2 = 2 + 11 + 16 = 13 + 16 = 29
The answer has been approved.

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