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Draw algebra tile models to prove that 4+8x and 4(2x+1) are equivalent
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Draw algebra tile models to prove that 4+8x and 4(2x+1) are equivalent

User Blaque
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4*(2x+1)=(2x+1)+(2x+1)+(2x+1)+(2x+1)=
2x+2x+2x+2x+1+1+1+1=
=8x+4
I hope this is ok !
User Luksak
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