8r-8=-32 What does r equal?

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baxthum8's profile pic

baxthum8 | High School Teacher | (Level 3) Associate Educator

Posted on

Solve `8r - 8 =-32.`

Add 8 to both sides to combine like terms.

`8r-8+8 = -32+8`

`8r = -24` Divide both sides by 8.

`(8r)/8 = (-24)/8`

`r = -3`

The solution is r = -3.

sid-sarfraz's profile pic

sid-sarfraz | Student, Graduate | (Level 2) Salutatorian

Posted on

QUESTIION:-

8r-8=-32

What does r equal?

SOLUTION:-

In the question, the equation is given;

`8r-8=32`

r = ?

Therefore further simplifying the equation;

`8r-8=32`

`8r-8+8=32+8`

`8r=40`

`8r/8=40/8`

`r=5`

Therefore the value of r as asked in the question is 5.

We can recheck the answer by inserting value of r in the given equation:-

`8r-8=32`

`(8*5)-8=32`

`40-8=32`

`32=32`

`LHS=RHS`

`Hence solved and proved!`

` `

tonys538's profile pic

tonys538 | Student, Undergraduate | (Level 1) Valedictorian

Posted on

The value of r has to be determined given that 8r-8=-32

Isolate r on one side of the equation.

8r-8=-32

Add 8 to both the sides of the equation

8r - 8 + 8 = -32 + 8

8r = -24

Divide both sides of the equation by 8

`(8r)/8 = (-24)/8`

r = -3

The required value of r is -3.

ik9744's profile pic

ik9744 | Student, Grade 9 | (Level 1) Valedictorian

Posted on

8r-8=-32

8r = -32 + 8

8r = -24

r = -24/8

r =-3

zumba96's profile pic

zumba96 | Student, Grade 11 | (Level 3) Valedictorian

Posted on

8r-8=-32

If you are trying to find r you need to isolate the variable

8r=-32 +8

combine like terms

8r=-24

Now since you are looking for r, divide both sides by 8

8r / 8 = -24 / 8

r=-3

jess1999's profile pic

jess1999 | Student, Grade 9 | (Level 1) Valedictorian

Posted on

8r - 8 = -32

To solve this equation , first add 8 on both sides

By adding 8 on both sides your equation should look like

8r = -24 now divide both sides by 8

By dividing your equation should look like

r = -3 which is your answer

nisarg's profile pic

nisarg | Student, Grade 11 | (Level 1) Valedictorian

Posted on

8r-8=-32

8r=-24   add 8 to both sides

r= -3      divide both sides by 8

atyourservice's profile pic

atyourservice | Student, Grade 11 | (Level 3) Valedictorian

Posted on

`8r-8=-32`

add 8 to both sides

`8r-8+8=-32+8`

`8r=-24`

divide by 8 to get r by itself

`(8r)/8 = (-24)/8`

r=-3

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