To solve the equation "-4(r+7) = -79", we will first distribute the -4:
-4r - 4(7) = -79
This simplifies to:
-4r - 28 = -79
Next, we will isolate the variable r by adding 28 to both sides:
-4r = -79 + 28
-4r = -51
Finally, we can solve for r by dividing both sides by -4:
r = -51 / -4
r = 12.75
To check our answer, we substitute 12.75 back into the original equation:
-4(12.75 + 7) = -79
-4(19.75) = -79
-79 = -79
Since both sides are equal, our solution of r = 12.75 is correct.
Solve the equation. Check your answer.
negative 4 left parenthesis r plus 7 right parenthesis equals negative 79
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Part 1
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(Simplify your answer. Type an integer or a fraction.)
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