Answer:
8. 35
Step-by-step explanation:
An expression is evaluated for a particular value of a variable by replacing the variable in the expression with its value. Then the numerical expression is evaluated according to the Order of Operations. Here, that means the multiplication is carried out first, then the addition.
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Put 5 where x is:
15 +4x
= 15 +4·5
Do the multiplication:
= 15 +20
Do the addition:
= 35
