3x+9=21
3x+9-9=21-9
Mathematics, 09.11.2019 17:31 serenityparish
one of the steps dave used to solve an equation is shown below.
3x+9=21
3x+9-9=21-9
which statement describes the procedure dave used in this step and identities the property that justifies the procedure?
a) dave rearranged the terms. this procedure is justified by the commutative property.
b) dave subtracted 9 from both sides. this procedure is justified by the additive property of equality.
c) dave rearranged the terms. this procedure is justified by the associative property.
d) dave subtracted 9 from both sides. this procedure is justified by the additive inverse.
Answers: 3
Another question on Mathematics
Mathematics, 21.06.2019 13:20
Figure lmno is located at l (1, 1), m (4, 4), n (7, 1), and o (4, −2). use coordinate geometry to best classify quadrilateral lmno.
Answers: 3
Mathematics, 21.06.2019 17:30
Consider the graph of the exponential function y=3(2)×
Answers: 1
Mathematics, 21.06.2019 18:10
Find the value of p for which the polynomial 3x^3 -x^2 + px +1 is exactly divisible by x-1, hence factorise the polynomial
Answers: 2
Mathematics, 21.06.2019 19:00
Write an introductory paragraph for this corrie ten boom and her family were faced with some difficult choices after hitler came to power. some family members paid the ultimate price. write a carefully thought-out paper of at least 200 words dealing with the following concepts: --how should a christian act when evil is in power? --what do you think it would be like to live in an occupied country? remember to proofread anything you write thoroughly.
Answers: 1
You know the right answer?
one of the steps dave used to solve an equation is shown below.
3x+9=21
3x+9-9=21-9
3x+9=21
3x+9-9=21-9
Questions
History, 05.10.2021 14:00
Mathematics, 05.10.2021 14:00
English, 05.10.2021 14:00
Mathematics, 05.10.2021 14:00
History, 05.10.2021 14:00
Physics, 05.10.2021 14:00
SAT, 05.10.2021 14:00
Mathematics, 05.10.2021 14:00
