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grandymaker [24]
3 years ago
15

15 - 2(3 - 2x) = 46 Simplify.

Mathematics
1 answer:
VMariaS [17]3 years ago
7 0

15-2(3-2x)=46\ \ \ |\text{use distributive property}\\\\15-(2)(3)-(2)(-2x)=46\\\\15-6+4x=46\\\\9+4x=46\ \ \ \ |-9\\\\4x=37\ \ \ \ |:4\\\\x=\dfrac{37}{4}\\\\x=9\dfrac{1}{4}

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S={0,1,2,3,4,5,6,7,8,9}

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c.D'=S-D

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D'={0,1,2,3,4}

d.A\cup B={0,2,4,6,8}\cup{1,3,5,7,9}

A\cup B={0,1,2,3,4,5,6,7,8,9}=S

e.A\cup C={0,2,4,6,8}\cup{0,1,2,3,4}

A\cup C={0,1,2,3,4,6,8}

f.A\cup D={0,2,4,6,8}\cup{5,6,7,8,9}

A\cup D={0,2,4,5,6,7,8,9}

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