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3 years ago

Helpp with bothhhh!!!!!

Mathematics

2 answers:

lisov135 [29]3 years ago

7 0

Answer:

3. a (x=5)

4. -126/25

Step-by-step explanation:

3. -3x+5=-10

-3x=-10-5

-3x=-15

x=5

4. -(-2 4/5) x 1 4/5

(-14/5) x 9/5

= -126/25

SashulF [63]3 years ago

4 0

Answer:

3. x = 5

4. -5 1/25

Step-by-step explanation:

-3x+5=-10

Subtract the 5 from both sides...

-3x = -15

Divide by -3

x = 5

For 4, it's just multiplying.

-2 4/5 in improper form is -14/5

1 4/5 in improper form is 9/5

-14/5 x 9/5 is -126/25

-126/25 can be -5.04 or -5 1/25.

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