Answer:
x= -2, y = -3
Step-by-step explanation:
1. substitute x = 4+2y in the first equation: ![\begin{bmatrix}2\left(4+2y\right)+y=-7\end{bmatrix}](https://tex.z-dn.net/?f=%5Cbegin%7Bbmatrix%7D2%5Cleft%284%2B2y%5Cright%29%2By%3D-7%5Cend%7Bbmatrix%7D)
simplify it : ![\begin{bmatrix}8+5y=-7\end{bmatrix}](https://tex.z-dn.net/?f=%5Cbegin%7Bbmatrix%7D8%2B5y%3D-7%5Cend%7Bbmatrix%7D)
2. isolate y in 8 + 5y = -7 --> 5y = -7 - 8 -->
3. solve for y: 5y = -15 --> y = -15/5 --> y= -3
4. solve for x: x = 4 + 2y
x = 4 + 2(-3)
x = 4 + (-6)
x = -2
Multiply is product. Divide is quotient
Answer:
Correct Answer
Step-by-step explanation:
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Answer:
25
Step-by-step explanation:
First expression: A= k/M
when A = 15 and M = 5, k = A×M = 75
therefore, when M = 4, A = 75/3 = 25
Answer:
1.63
HOPE THIS WILL HELP..............!