Louisa wants to use the elimination method to solve the system of equations shown below. She decides to multiply the second equation by a number in order to eliminate the x terms. What should Louisa multiply by and what is the new equation?3x + 4y = 40x + 6y = 18ResponsesLouisa should multiply by -3. The result is -3x - 18y = - 54. Louisa should multiply by -3. The result is -3x - 18y = - 54. Louisa should multiply by 3. The result would be 3x + 18y = 18Louisa should multiply by 3. The result would be 3x + 18y = 18Louisa should multiply by -3. The result is -3x + 6y = 18.Louisa should multiply by -3. The result is -3x + 6y = 18.Louisa should multiply by 3. The result is 3x + 6y = 18.
Question
Louisa wants to use the elimination method to solve the system of equations shown below. She decides to multiply the second equation by a number in order to eliminate the x terms. What should Louisa multiply by and what is the new equation?3x + 4y = 40x + 6y = 18ResponsesLouisa should multiply by -3. The result is -3x - 18y = - 54. Louisa should multiply by -3. The result is -3x - 18y = - 54. Louisa should multiply by 3. The result would be 3x + 18y = 18Louisa should multiply by 3. The result would be 3x + 18y = 18Louisa should multiply by -3. The result is -3x + 6y = 18.Louisa should multiply by -3. The result is -3x + 6y = 18.Louisa should multiply by 3. The result is 3x + 6y = 18.
Solution
Louisa should multiply by -3. The result is -3x - 18y = -54.
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