3x–4y=1...(1)
5x–6y=7...(2)
In the above equations, which of the following step can to be done to numerically equate the coefficients of x?
Multiply equation (1) by 5 and equation (2) by 3.
Coefficient of x in equation (1) is 3.
Coefficient of x in equation (2) is 5.
So, to make coefficients of x equal, multiply equation (1) by 5 and equation (2) by 3.
Equation (1) × 5 ⇒15x–20y=5
Equation (2) × 3 ⇒15x–18y=21