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(7x+2)+(x-3)=

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(7x+2)+(x-3)= \\ 7x+2+x-3=\\ 8x-1
User Trent Davies
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(7x+2)+(x-3)=

= 7x+2+x-3=

=(7x+x)+(2-3)=

=8x+(-1)=

=8x-1

User Ardeshir Ojan
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