Final answer:
The equivalent expression for the given equation is -74 + 56b = 112b - 154.
Step-by-step explanation:
To find the equivalent expression for the given equation, let's simplify both sides of the equation.
-74 + 56b = 8(7b - 10) + 6
Start by distributing the 8 to the terms inside the parentheses:
-74 + 56b = 56b - 80 + 8(7b) + 8(-10) + 6
Next, simplify the right side further:
-74 + 56b = 56b - 80 + 56b - 80 + 6
Combine like terms on the right side:
-74 + 56b = 112b - 154
The equivalent expression for the given equation is -74 + 56b = 112b - 154.