Q. Rewrite in simplest terms: 0.5(−6x−9x+4)−0.4xAnswer:
Combine like terms: Combine like terms within the parentheses.We have −6x and −9x which are like terms, so we add them together.−6x−9x=−15xSo the expression within the parentheses simplifies to −15x+4.
Distribute 0.5: Distribute the 0.5 across the terms inside the parentheses.0.5×(−15x)+0.5×4=−7.5x+2
Combine terms: Combine the result from Step 2 with the remaining term −0.4x.We have −7.5x from the distribution and −0.4x outside the parentheses.−7.5x−0.4x=−7.9x
Add constant term: Add the constant term from Step 2 to the expression.We have −7.9x from Step 3 and +2 from Step 2.The final simplified expression is −7.9x+2.
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