how would you solve this equation with elimination.

Question

5r+2s=0
-3t=12
6s+5t=10

Answer 1

Elimination method :

The system of equations are .

To get the second and third equaions that contain opposite terms multiply

the second equation by 5 and multiply the third equation by 3.

Write the second snd third equations in column form and add the equations to

eliminate t - variable.

The resultant equation is .

Substitute the value of s = 5 in either of the original equations and solve for r.

The first equation: .

.

Substitute the value of s = 5 in either of the original equations and solve for t.

Thethird equation: .

.

The solution .