Subtract 1.2a“ – 0.7a from the sum of 0.6 a4 + 1.5a and 0.4 a4 - 1.1aFirst, we will translate the words of the problem into mathematical symbols. Then we will perform the indicated operations.The words of the problem contain the key phrases subtract from and sum.Since 1.2a4 – 0.7a is to be subtracted from the sum, the order must be reversed when we translate to mathematical symbols.Subtract 1.2a40.7a from the sum of 0.6a + 1.5a and 0.4a41.1a.[(0.6 a4 + 1.5a) + (0.4 at – 1.1a) ] - (1.2a* –0.7a)Use brackets [ ] to enclose the sum.Next, we remove the grouping symbols to obtain0.6 a4 + 1.5a + 0.4 at – 1.1a -1.2a4 + 0.7aChange the sign of each term within (1.2a4 - 0.7a) and drop the parentheses.at+aCombine like terms.%DSubtract -0.6q? – 0.6q from the sum of 0.1q? - 0.6q and 0.3q² + 0.1q.

Answered: Image /qna-images/answer/ce93e4e9-164a-40a3-9abb-a60836df072b.jpg

ubtract 1.2a4 - 0.7a from the sum of 0.6 a + 1.5a and 0.4 a4 - 1.1a irst, we will translate the words of the problem into mathematical symbols. Then we will perform the indicated operations. The words of the problem contain the key phrases subtract from and sum. ince 1.2a4 - 0.7a is to be subtracted from the sum, the order must be reversed when we translate to mathematical symbols. ubtract 1.2a4 - 0.7a from the sum of 0.6aª + 1.5a and 0.4a4 - 1.1a. (0.6 aª + 1.5a) + (0.4 a4 – 1.1a)1 – (1.2a4 – 1.7a) Use brackets[ ] to enclose the sum. lext, we remove the grouping symbols to obtain = 0.6 a4 + 1.5a + 0.4 a4 – 1.1a -1.2a4 + 0.7a Change the sign of each term within (1.2a4 – 0.7a) and drop the parentheses. =Daª+ Combine like terms. a ubtract –0.6q² - 0.6q from the sum of 0.1q2 – 0.6q and 0.3q² + 0.1g.