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4r+12=-16
Work shown!!! Please help

User BitWorking
by
4.3k points

2 Answers

3 votes

Answer:


r=-7

Explanation:


4r+12=-16

Subtract 12 from both sides.


4r=-28

Divide both sides by 4.


r=-7

Check our work with substitution:


4\cdot-7+12=-28+12=\boxed{-16}

We see that our work is correct.

User Riffnl
by
4.6k points
4 votes

4r + 12 = −16

Subtract 12 from both sides.

4r = −16 − 12

Subtract 12 from −16 to get −28.

4r = −28

Divide both sides by 4.

r = -28/4

Divide −28 by 4 to get −7.

r = −7 ==> Answer

User AngryInsomniac
by
4.1k points