Ответ:
1) (3x+2)•5=15x+10
2) 15-(7+x)=15-7-x=8-x
3) 15+(5x-8)=15+5x-8=5x+7
4) -7x•2y•(-3)=42xy
5) 4(x-5)-3(x-2)=4x-20-3x+6=x-14
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Ответ:
1) (3x+2)•5=15x+10
2) 15-(7+x)=15-7-x=8-x
3) 15+(5x-8)=15+5x-8=5x+7
4) -7x•2y•(-3)=42xy
5) 4(x-5)-3(x-2)=4x-20-3x+6=x-14