208k views
1 vote
3

To solve 2x + 9 = 21, what is the first step?
А. Dividing each side by 2
B
Dividing each side by x
С
Subtracting 21 from each side
D
Subtracting 9 from each side

User Lohith MV
by
5.5k points

1 Answer

0 votes

Answer: D. Subtracting 9 from each side

Explanation:

Always start with numbers without variables first before doing anything with x. And make sure one side must not equal 0 unless you're doing polynomials.

User Pranavk
by
4.4k points