lw's answer to Ifa elys's Primary 6 Maths Fractions Singapore question.
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basically, this is solved by algebra.
you just have to solve the equation, then substitute in x (which is found) into one of the equations.
tip: algebra is very useful in primary school math
you just have to solve the equation, then substitute in x (which is found) into one of the equations.
tip: algebra is very useful in primary school math
Date Posted:
4 years ago
The last boy would have only 2, means short of 7 lollipops
9x - 7 = 6x + 20
Primary pupils only start to learn algebra, most of them dont know how use algebra
9x - 7 = 6x + 20
Primary pupils only start to learn algebra, most of them dont know how use algebra
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