-53+(20 -7)

To solve the expression -53 + (20 - 7), we need to follow the order of operations, which is also known as PEMDAS (parentheses, exponents, multiplication and division from left to right, and addition and subtraction from left to right).

First, we simplify the expression in parentheses: 20 - 7 = 13.

Now the expression becomes: -53 + 13.

Finally, we add -53 to 13: -53 + 13 = -40.

Therefore, -53 + (20 - 7) simplifies to -40.