How use elimination when your coefficients are not the same 5x + 3y = -10 , 3x + 5y = -6

The video tutorial explains how to use the elimination method in solving equations when variables are not the same. It covers finding the least common multiple (LCM) to align variables, applying the elimination method, and simplifying equations using negative multiplication. The tutorial concludes with solving the equation and emphasizes the importance of having the same number in front of variables for effective elimination.

What is the first step when using the elimination method if the variables are not the same?

• Subtract the equations directly

• Find the greatest common divisor

• Find the least common multiple

• Add the equations directly

In the given problem, what is the least common multiple of 5 and 3?

• 10

• 20

• 30

• 15

Why is it sometimes easier to multiply by a negative number during elimination?

• It simplifies the addition of equations

• It makes subtraction unnecessary

• It changes the variable coefficients

• It eliminates the need for division

After eliminating one variable, what is the next step to find the solution?

• Divide both sides by zero

• Substitute the found value into one of the original equations

• Multiply the equations again

• Add the equations again

What is the solution for X in the given problem after elimination?

• -2

• -10

• 0

• 2