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Anna [14]
3 years ago
14

How many solutions does the following equation have? -4(+5) = -4- 20

Mathematics
1 answer:
Rus_ich [418]3 years ago
4 0

Answer:

0

Step-by-step explanation:

Try looking at it in 2 ways- left side and right side. On the left side we have -4*5, which equals -20. On the right we have -4-20, which equals -24. so then when we add it all together (not literally) we get -20=-24. Since -20 and -24 obviously do not equal eachother, there is no solution.

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Step-by-step explanation:

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2 years ago
Identify the equation in slope-intercept form for the line that has the given slope and contains the given point. Slope = −1/2;
taurus [48]
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you plug in x and y do find b the y intercept
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6 0
3 years ago
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likoan [24]

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Step-by-step explanation:

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4 0
3 years ago
Y=–3x + 6y=9 What is the solution to the system of equations? (–21, 9) (9, –21) (–1, 9) (9, –1)
weqwewe [10]

ANSWER


The solution is (-1,9)

EXPLANATION

We want to solve the simultaneous equations


y=-3x+6---(1)


and


y=9--(2).


We substitute equation (2) in to equation (1), to obtain


9=-3x+6


This has now become a linear equation in a single variable x.


We solve for x  by grouping like terms.


9-6=-3x


3=-3x


We divide through by negative 3 to get;


-1=x.


Hence, the solution is (-1,9)





7 0
3 years ago
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