3 years ago

What are some equivalent expressions for..

1 answer:

8 0

$\#1\\7(x-4)=7\times x-7\times4=7x-28\\\\\#2\\x(5-6)+13x-10=x(-1)+13x-10=-x+13x-10=12x-10\\\\\#3\\2.5(8-2x)+5(x+1)=2.5\times8-2.5\times2x+5\times x+5\times1\\=20-5x+5x+5=25\\\\\#4\\3(x+10)-3(2-4x)=3\times x+3\times10-3\times2-3\times(-4x)\\=3x+30-6+12x=15x+24$

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<em>Additional comment</em>

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