Question

create an expression that is equivalent to 3 more than 7 times the sum of 15 and 20.

Explanation:

Step1: Find sum of 15 and 20

$15 + 20 = 35$

Step2: Multiply sum by 7

$7 \times 35 = 245$

Step3: Add 3 to the product

$245 + 3 = 248$

Step4: Write equivalent expression

$7\times(15+20)+3$

Answer:

The equivalent expression is $\boldsymbol{7\times(15+20)+3}$, and its value is $\boldsymbol{248}$