Mathematics for IGCSE & O level - Equations (Section 8 - No. 10)
What are the steps to solving a linear simultaneous equation by elimination?
Make the coefficients of one variable the same by multiplying the equations by constants.
Add or subtract the equations to eliminate the variable with the same coefficients.
Solve the resulting equation for the remaining variable.
Substitute the value of the solved variable into one of the original equations to find the value of the other variable.
Giải thích
These are all correct steps for solving simultaneous equations using the elimination method.