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BabaBlast [244]
3 years ago
13

-5x+4y=3 x=2y-15 Solve for y and x

Mathematics
1 answer:
serious [3.7K]3 years ago
3 0

Answer:

<em><u>x=9, y=12</u></em>

Step-by-step explanation:

-5x+4y=3 --------A

x=2y-15----------B

Putting the value of x from B in A

-5(2y-15) +4y=3

-10y+75+4y=3

-6y=3-72

-6y=-72

y=72/6= 12

Putting the value of y =12 in B

x= 2(12)-15

x= 24-15

x=9

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3 − m = −2 (m + 6); m = −15 Yes or No
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Answer:

3 − m = −2 (m + 6); m = −15    Yes

5 (p + 3) = −35; p = −4            No

8q = 3 (10 + q); q = 6             Yes


Step-by-step explanation:

3 − m = −2 (m + 6)

3 - m = -2m - 12

m = -15

Answer is Yes


5 (p + 3) = −35

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8q = 3 (10 + q)

8q = 30 + 3q

5q = 30

q = 6

Answer is  Yes

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