Q. Find the solution of the system of equations.12x−10y=2−6x+7y=−11(□,□)
Label Equations: Let's label the equations for easier reference:Equation (1): 12x−10y=2Equation (2): −6x+7y=−11We will use the method of elimination to solve this system of equations. First, we need to make the coefficients of either x or y the same in both equations. We can do this by multiplying equation (2) by 2 to match the coefficient of x in equation (1).
Multiply Equation: Multiply equation (2) by 2: 2(−6x+7y)=2(−11)−12x+14y=−22Now we have a new equation (3):Equation (3): −12x+14y=−22
Add Equations: Add equation (1) and equation (3) together to eliminate x: (12x−10y)+(−12x+14y)=2+(−22)The x terms cancel out, and we are left with:−10y+14y=−20This simplifies to:4y=−20
Solve for y: Divide both sides of the equation by 4 to solve for y:44y=4−20y=−5We have found the value of y.
Substitute and Solve: Now that we have the value of y, we can substitute it back into one of the original equations to find x. We will use equation (1):12x−10(−5)=212x+50=2
Solve for x: Subtract 50 from both sides of the equation to solve for x:12x+50−50=2−5012x=−48
Solve for x: Subtract 50 from both sides of the equation to solve for x: 12x+50−50=2−5012x=−48Divide both sides of the equation by 12 to solve for x: 1212x=12−48x=−4We have found the value of x.