Question

1. (image shows three rectangles with x, three groups of two small rectangles, equals six groups of two small rectangles)

Explanation:

Step1: Assign values to blocks

Let each large block = $10$, each small block = $1$. Left side: $3\times10 + 3\times1 = 33$. Right side: $6\times1 = 6$. Equation: $33 - x = 6$

Step2: Isolate the variable $x$

Rearrange to solve for $x$: $x = 33 - 6$

Step3: Calculate the result

$x = 27$, which is $2\times10 + 7\times1$

Answer:

The equation is $33 - x = 6$, and the solution is $x=27$ (represented by 2 large blocks and 7 small blocks).