Simplify $20 - (2 \cdot 4 f) + (2 \cdot 9) + (7 \cdot 2 f) - (7 \cdot 6) + 11$ $20 - (2 * 4f) + (2 * 9) + (7 * 2f) - (7 * 6) + 11$ ?

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Answer 1 · 2016-12-18T13:36:07

$6 f + 7$ $6f + 7$

First, expand all the terms within parenthesis paying close attention to the signs both inside and outside the parenthesis:

$20 - (2 \cdot 4 f) + (2 \cdot 9) + (7 \cdot 2 f) - (7 \cdot 6) + 11$ $20 - (2*4f) + (2*9) + (7*2f) - (7*6) + 11$

20 - 8f + 18 + 14f - 41 + 11#

Next we can group like terms:

$- 8 f + 14 f + 20 + 18 - 42 + 11$ $-8f + 14f + 20 + 18 - 42 + 11$

Now we can combine like terms:

$(- 8 + 14) f + 7$ $(-8 + 14)f + 7$

$6 f + 7$ $6f + 7$

Simplify 20−(2⋅4f)+(2⋅9)+(7⋅2f)−(7⋅6)+1120 - (2 * 4f) + (2 * 9) + (7 * 2f) - (7 * 6) + 11?