Answer:
a=6
Step-by-step explanation:
to find the value of a you need to simplify the equation first. so...
3(a+3)-6=21 (you remove the bracket first)
3a+9-6=21
3a+3=21 (you collect the like terms then)
3a=21-3
3a=18 (then you both divide both sides by 3 to find the value of a)
a=18/3
a=6
to check your answer substitute 3 instead of a
3(a+3)-6=21
3(6+3)-6=21
3(9)-6=21 (according to BODMAS since multiplication comes first you multiply 3 with 9 before subtracting it from 6.)
29-6=21
21=21
Answer:
B, C, D
Step-by-step explanation:
1, 2, 3 are all greater than 0
Answer:
11.7
Step-by-step explanation:
multiply RS by the scale factor to get R'S'
The first answer is 25x + 45 = c
The second one is y=3x
Hopes this helps
I think its 11250 I'm so sorry if that's wrong bc I'm new at this
