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3 years ago

Simplify. 2 - 30 × 5

Mathematics

2 answers:

exis [7]3 years ago

8 0

First you would do -30x5 which equals -150 then 2-150 equals -148

LuckyWell [14K]3 years ago

7 0

2-150 multiply 30 x 5
-148 Subtract 2-150

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Find the solution of the system of equations.<br><br> x-y=-3<br>-8x+y=45

mezya [45]

Answer:

x = 17, y = 28

Step-by-step explanation:

1. Isolate for x in "x - y = -3, -8":

x - y+y = -3, -8+y

x = -11 + y

2. Substitute "x = -11 + y" in for x in the second expression:

-11 + y + y = 45

3. Simplify:

-11 + 2y = 45

4. Isolate y:

-11+11 +2y = 45+11

2y = 56

$\frac{2y}{2} = \frac{56}{2}$

y = 28

5. Substitute the new y-value into the first equation:

x = -11 + 28

x = 17

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2 years ago

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Trava [24]

Answer:

Step-by-step explanation:

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2 years ago

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matrenka [14]

Answer:

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Step-by-step explanation:

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