To simplify the expression \( 10(7p + 6) - 5(5p + 4) \), let's follow these steps:
-
Distribute the 10 in the first term: \[ 10 \times 7p + 10 \times 6 = 70p + 60 \]
-
Distribute the -5 in the second term: \[ -5 \times 5p - 5 \times 4 = -25p - 20 \]
-
Combine the results: \[ 70p + 60 - 25p - 20 \]
-
Combine like terms (the terms with \( p \) and the constant terms): \[ (70p - 25p) + (60 - 20) = 45p + 40 \]
So, the simplified expression is: \[ \boxed{45p + 40} \]