Q. Combine the like terms to create an equivalent expression: −3z−z
Identify Like Terms: Identify like terms in the expression.In the expression −3z−z, both terms are like terms because they contain the variable z raised to the same power (which is 1 in this case).
Combine Like Terms: Combine the like terms by adding their coefficients.The coefficient of −3z is −3, and the coefficient of −z is −1 (since z is the same as 1z, and −z is the same as −1z).So, −3+(−1)=−3−1=−4
Write Combined Terms: Write the combined like terms as a single term.Since we have combined the coefficients, the equivalent expression is −4z.
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