Use elimination to solve: x/3 + 4y = 30 and 2x - y = 5.

Question

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Answer 1

Elimination method :

The system of equations are .

To get two equations that contain opposite terms multiply the first equation by - 6.

Write the equations in column form and add the equations to eliminate x - variable.

The resultant equation is .

Substitute the value of y = 7 in either of the original equations and solve for x.

The second equation: .

.

The solution .