Q. Solve the system of equations.5y−4x=−72y+4x=14x=□y=□
Identify operation to eliminate variable: Identify the operation to eliminate one of the variables. In this case, we can add the two equations directly to eliminate 'x'.
Add equations to eliminate 'x': Add the equations (5y−4x)+(2y+4x)=−7+14 to eliminate 'x'.5y−4x+2y+4x=−7+147y=7
Solve for 'y': Solve for 'y'. Dividing both sides of the equation by 7 gives us y=1.77y=77y=1
Substitute y=1 to solve for 'x': Substitute y=1 into one of the original equations to solve for 'x'. We can use the second equation 2y+4x=14.2(1)+4x=142+4x=14
Solve for 'x': Solve for 'x'. Subtract 2 from both sides to isolate 4x.4x=14−24x=12
Write the solution as a coordinate point: Divide both sides by 4 to find the value of 'x'.44x=412x=3
Write the solution as a coordinate point: Divide both sides by 4 to find the value of 'x'.44x=412x=3Write the solution as a coordinate point. The solution is (3,1).
More problems from Solve a system of equations using elimination