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sergejj [24]
3 years ago
14

3x + 4y = 5 X- 3y = -7 Solve by substitution

Mathematics
1 answer:
weeeeeb [17]3 years ago
7 0
X = 3y - 7
3x + 4y = 5

3(3y - 7) + 4y = 5
9y - 21 + 4y = 5

13y - 21 = 5

13y = 26

y = 2

x - 3(2)= -7

x - 6 = -7

x = -1

(-1, 2)
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galben [10]

Answer:

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Step-by-step explanation:

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4 0
2 years ago
Jimmy made a scale drawing of his house. The actual dimensions of his house are 50 feet by 100 feet. He used the scale 1 inch :
sleet_krkn [62]

Step-by-step explanation:

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If you don't under stand.

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7 0
3 years ago
The slope of a line is -1/4 and the y-intercept is 8. Whats the x-intercept?
Fed [463]
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7 0
3 years ago
if a right angle has a hypotenuse of 19 units and a leg with the length of 7 units, find the length of the other leg
anyanavicka [17]
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8 0
3 years ago
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Reil [10]

Answer:

a

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The answer should be a

4 0
3 years ago
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