Strategies for solving simultaneous equations in IGCSE are crucial for students to excel in this area of mathematics.

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-To solve simultaneous equations in IGCSE, you can use either the substitution method or the elimination method. Here’s a step-by-step guide for each method:

1.Substitution Method:

-Solve one of the equations for one variable in terms of the other variable.

-Substitute this expression into the other equation.

-Solve the resulting equation for the remaining variable.

-Substitute the value found back into one of the original equations to find the value of the other variable.

-Check your solution by substituting both values into both original equations.

2.Elimination Method:

-Ensure that the coefficients of one of the variables in both equations are the same or multiples of each other. If not, multiply one or both equations by suitable constants to achieve this.

-Add or subtract the equations so that one variable is eliminated, leaving you with an equation in one variable.

-Solve this equation for the remaining variable.

-Substitute the value found back into one of the original equations to find the value of the other variable.

-Check your solution by substituting both values into both original equations