2x+x-7+3x-20=87cm
6x-27=87
6x=114
x=19
Therefore the sides are:12cm, 38cm, and 37cm
Answer: 29 1/4
Step-by-step explanation:
Multiply and simplify to 29 1/4
Answer:

Step-by-step explanation:
Given:


Substitution can be used to find the value of
:




Hope this helps :)
8 because 6 months times 5 paintings each month is equal to 30. 38-30=8
Answer:
y we use y
Step-by-step explanation: