X=5/2 , remove parentheses , collect like terms, move terms , collect like terms and calculate the sum , then divide both sides by 2 , hope this helped broski
SOLUTION
From the question given the following statements to prove are correct, then the last part

The reason is Side-side-side triangle theorem
This theorem states that all three sides of a triangle are congruent (identical) to the corresponding sides of another triangle, then the triangles themselves are also congruent.
Hence the answer is Side-side-side triangle theorem
2m+3=23
2m=20
m=10
let me know in the comments if you need further explanation :)
Sorry if my handwriting sloppy.
I showed all of it step by step.
Answer:
2 cubes are red, 6 are blue, the rest are yellow so 8
Step-by-step explanation: