PSSA Grade 6 Expressions and Equations. Practice it free.

The constants $3$ and $8$ are like terms: $3 + 8 = 11$. The term $w$ stays the same, so the expression is equivalent to $w + 11\textsf{.}$

Distribute 4: $4 \cdot 7x + 4 \cdot 2 = 28x + 8$.

$3^{3} = 3 \cdot 3 \cdot 3 = 27\textsf{.}$

The base $5$ appears $5$ times as a factor, so $5 \times 5 \times 5 \times 5 \times 5 = 5^{5}$.

Multiply first: $8 \cdot 7 = 56$. Then $9 + 56 - 4 = 61$.

$\,1^3 = 1 \cdot 1 \cdot 1 = 1$.

The constants $12$ and $5$ are like terms: $12 + 5 = 17$. The term $p$ stays the same, so the expression is equivalent to $p + 17\textsf{.}$

Combine $x$-terms: $8x + 8x = 16x$. Combine constants: $2 - 1 = 1$. Result: $16x + 1$.