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SVEN [57.7K]
3 years ago
12

Add or subtract as indicated -3 4/5 + 9 7/10 - 11/20

Mathematics
1 answer:
LenaWriter [7]3 years ago
7 0

Answer:

5 7/20

Step-by-step explanation:

-3 4/5+9 7/10-11/20

=-19/5+9 7/10- 11/20

=-19/5+97/10-11/20

=59/-11/20

=107/20

=5 7/20

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What is the solution to the system of equations below? -4x+6y=-18 and y=-2x+21
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Answer:

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Step-by-step explanation:

Let's solve your system by substitution.

−4x+6y=−18 and y=−2x+21

Rewrite equations:

y=−2x+21;−4x+6y=−18

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y=−2x+21

Step: Substitute−2x+21foryin−4x+6y=−18:

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y=−2x+21

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Answer:

x=9 and y=3

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LOOK AT THE IMAGE

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