Answer:
v = -6
Step-by-step explanation:
Isolate the variable, v. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.
PEMDAS =
Parenthesis
Exponents (& Roots)
Multiplication
Division
Addition
Subtraction
First, add 18 to both sides:
-42 (+18) = 4v - 18 (+18)
-42 + 18 = 4v
4v = 18 - 42
4v = -24
Next, divide 4 from both sides:
(4v)/4 = (-24)/4
v = -24/4
v = -6
v = -6 is your answer.
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