Evaluate the expression 8a + b for the given variable.
b = 3a – 2
just substitute 3a-2 for b in the equation 8a + b
8a + 3a -2
combine your like terms to get
11a - 2 and that's your answer if you want a just set it equal to zero
To evaluate the expression 8a + b, we first need to substitute the value of b in terms of a into the expression. Given b = 3a - 2, we can replace b with 3a - 2 in the expression.
So, 8a + b becomes 8a + (3a - 2).
Next, we simplify the expression by combining like terms. The like terms are 8a and 3a since they both have the variable a.
Therefore, 8a + (3a - 2) simplifies to (8a + 3a) - 2, which further simplifies to 11a - 2.
Thus, the expression 8a + b evaluated for the given variable b = 3a - 2 is 11a - 2.
To evaluate the expression 8a + b, we need to substitute the value of b in terms of a.
Given that b = 3a - 2, we can substitute this value of b into the expression:
8a + (3a - 2)
Now, we simplify the expression by distributing the 8:
8a + 3a - 2
Combining like terms, we have:
11a - 2
Therefore, the expression 8a + b evaluates to 11a - 2.