Final answer:
To solve the expression 20+3(7+4)+5+2(7+9), follow the order of operations known as BIDMAS or PEMDAS. The value of the expression is 90.
Step-by-step explanation:
To solve the expression 20+3(7+4)+5+2(7+9), we need to use the order of operations known as BIDMAS or PEMDAS. BIDMAS stands for Brackets, Indices, Division and Multiplication (from left to right), and Addition and Subtraction (from left to right).
Start by evaluating the expressions inside the brackets. 7+4 equals 11 and 7+9 equals 16. Now substitute these values back into the original expression: 20+3(11)+5+2(16).
Next, perform the multiplications. 3 multiplied by 11 is 33, and 2 multiplied by 16 is 32. Now the expression becomes: 20+33+5+32.
Finally, add all the numbers together: 20+33+5+32 equals 90. Therefore, the value of the expression is 90.
Learn more about Order of operations in mathematics