susana05

how do I simplify this? 2(a + 4) + -8

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wwe123

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|dw:1353591402573:dw|

jazy

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|dw:1353591456733:dw|

shaik0124

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2a+18 if u consider + sinn between 8 andd 8 else 2a id -ve sign b/w 8 n 8

shaik0124

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aorry 2a+16

shaik0124

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2a+16

jazy

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So you actually have two equations:
\[2a + 8 + 8 \to 2a + 16 \]and\[2a + 8 - 8 \to 2a\]
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BUT, if it was 2(a + 4) + (-8) then that's the same as 2(a + 4) - 8:
2(a + 4) - 8
2a + 8 - 8
2a <--answer

Praja_01

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2(a+4)+-8=2a+8+-8=2a