GRE Math Review 2 ALGEBRA - ETS Home

There are two basic methods for solving systems of linear equations, by substitution or by elimination. In the substitution method, one equation is manipulated to express one variable in terms of the other. Then the expression is substituted in the other equation. For example, to solve the system of two equations. 4x + 3y = 13, and . x + 2y = 2 ................
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