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4(x+x+7)-2x+8-4 substitute x=1 and x=2
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4(x+x+7)-2x+8-4 substitute x=1 and x=2

User Dmaxi
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1 Answer

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4(x+x+7)-2x+8-4
Substitute x with 1
4(1+1+7)-2(1)+8-4
=4(2+7)-2+4
=4(9)-2+4
=36-2+4
=34+4
=38

4(x+x+7)-2x+8-4
Substitute x with 2
4(2+2+7)-2(2)+8-4
=4(4+7)-4+4
=4(11)
=44. Hope it help!
User Squiggle
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