Answer:
The first equation should be multiplied by 9 and the second equation by −4
Step-by-step explanation:
Given the simultaneous equation
First Equation: 5x − 4y = 28
Second equation: 3x - 9y = 30
In order to eliminate y, we must make the coefficient of x in both expression to be equal.
To do that the first equation should be multiplied by 9 (negative value of the coefficient of y in equation 2)and the second equation by -4( (coefficient of y in equation 1)
Answer:
- 2
Step-by-step explanation:
The sum of - 4 and - 15 = - 19
Increased by 17 means to add on 17 to the above result, that is
- 19 + 17 = - 2
Answer:
4/3
Step-by-step explanation:
12/3=4
9/3=3
