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Finish solving the system of equations -9.5x -2.5y = -4.3 and 7x + 2.5y = 0.8 using the linear combination method.

1 Determine which variable will be eliminated: y will be eliminated because -2.5y and 2.5y are opposite terms.
2. Add the equations together to create a one-variable linear equation: -2.5x = -3.5
3. Solve to determine the unknown variable in the equation:
x = 1.4
4. Substitute the value of the variable into either original equation to solve for the other variable.
The solution to the system is

2 Answers

4 votes

Answer:

it would be (1.4,-3.6)

Explanation:

User Andre Zimpel
by
3.2k points
2 votes

Answer:

y= -3.6

Explanation:

-9.5(1.4)-2.5y=-4.3

-13.3-2.5y=-4.3

-9=2.5y

y=-3.6

User JyTee
by
3.6k points