what equation does this set of algebra tiles represent?\ncombine like terms on each side of the equation…

what equation does this set of algebra tiles represent?\ncombine like terms on each side of the equation. for example, write 3 instead of $1 + 1 + 1$.
Answer
Explanation:
Step1: Count the variable tiles on the left
There are 2 green tiles labeled $x$. $$2x$$
Step2: Count the unit tiles on the left
There are 7 yellow tiles labeled 1. $$7$$
Step3: Count the unit tiles on the right
There are 21 yellow tiles labeled 1 (arranged in a $3 \times 7$ grid). $$21$$
Step4: Formulate the final equation
Combine the terms from both sides using the equals sign. $$2x + 7 = 21$$
Answer:
2x + 7 = 21