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by elimination,substitution or through the matrix method.
Elimination is particularly easy when one of the coefficients is one, or the equation can be divided by a number to reduce a coefficient to one. This makes substitution and elimination more trivial.
Yes, for solving simultaneous equations.
identify the property and equation that satisfies the following statement: the solution of an equation is x=-2.
By working out the values of x and y in the given equations by elimination and substitution