Eric Nicholas K's answer to batrisya's Secondary 2 Maths Singapore question.
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Elimination requires direct subtraction or addition of equations to eliminate a variable.
Here, just nice both equations have 1x and 1x, so we can subtract equation 2 from equation 1 directly to eliminate the x, leaving behind an equation in y.
Here, just nice both equations have 1x and 1x, so we can subtract equation 2 from equation 1 directly to eliminate the x, leaving behind an equation in y.
Date Posted:
5 years ago
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