6 July, 23:00
5z+3-3z in equivalent expression
6 July, 23:24
2z + 3
This question simply involves understanding what like terms are, and how to combine them.
Here, 5z and - 3z are like terms, so we combine them by going 5z-3z = 2z
(i. e. we minus the coefficients, but the z stays unchanged).
Next, the number term of 3 in the middle cannot be combined with any other term, so it just stays in the expression.
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