1.

Select the correct approach for solving a pair of linear equations in 2 variables by elimination method. (i) Add or subtract one equation from the other so that one variable gets eliminated. (ii) Multiply both the equations by any non-zero constant to make the coefficients of one variable (either x or y) numerically equal. (iii) Solve the equation in one variable (x or y) to get its value. (iv) Substitute the value of x (or y) in either of the original equations to get the value of the other variable.

Answer»

Select the correct approach for solving a pair of linear equations in 2 variables by elimination method.
(i) Add or subtract one equation from the other so that one variable gets eliminated.
(ii) Multiply both the equations by any non-zero constant to make the coefficients of one variable (either x or y) numerically equal.
(iii) Solve the equation in one variable (x or y) to get its value.
(iv) Substitute the value of x (or y) in either of the original equations to get the value of the other variable.




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