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2 years ago

What is the solution to the system of equations? Use any method you like, but be sure to show all work.

1 answer:

6 0

2x + y = -3
x - 2y = -4

2x + y = -3
2x - 4y = -8
----------------
5y = 5
y= 1

2x + y = -3
2x + (1) = -3
2x = -4
x = -2

Solution: x = -2, y = 1

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If the first step in the solution of the equation -9 + x = 5x - 7 is "subtract x," then what would the next step be ?

lutik1710 [3]

Answer:

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Step-by-step explanation:

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2 years ago

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Answer:

Step-by-step explanation:

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2 years ago

ann and betty share a sum of money in the ratio 2:3 respectively Ann revived $120 what was betty's share

olchik [2.2K]

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3 years ago

Read 2 more answers

Find ????⋅ ???? if |????|=3 , |????|=9 , and the angle between ???? and ???? is π2 radians.

mrs_skeptik [129]

Answer:

$a{\cdot}b=0$

Step-by-step explanation:

It is given that,

Magnitude of a A, $|A|=3$

magnitude of B, $|B|=9$

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Dot product,

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So, a.b is equal to 0.

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3 years ago

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Ipatiy [6.2K]

Answer:

Step-by-step explanation:

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2 years ago