3 years ago

For a test.. Solve. 21<7

Mathematics

1 answer:

alexandr1967 [171]3 years ago

5 0

Answer:

21 is greater

Step-by-step explanation:

If its not.......maybe I am dumb :)

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A mechanic works on the overhaul of a transmission. He starts at 8:25 AM and finishes

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How many factors does 72 have? Eliminat 14

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mart [117]

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$x=-9$

$y=4$

Step-by-step explanation:

$3x+10y=13$ ← Equation 1

$4(-2y+x)-9x=13\\$

By simplifying the above equation we get,

$-8y+=4x-9x=13$ (Simplifying the brackets)

$-8y-5x=13$ (By subtracting $-9x$ from $+4x$ ) ← Equation 2

Multiply Equation 1 by 5 and Equation 2 by 3 and add them together.

Equation 1 multiplied by 5 will give,

$15x+50y=65$

Equation 2 multiplied by 3 will give,

$-24y-15x=39$

Add those together,

$15x+50y-24y-15x=65+39$

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Therefor we can say,

$x=-9$

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3 years ago