Question

What is -30-(-5x)=x
​

Answer 1

Answer: −

1

(

−

5

)

−

=

−

3

0

Explanation:

Subtract

3

0

30

30

from both sides of the equation

3

0

−

1

(

−

5

)

=

30-1(-5x)=x

30−1(−5x)=x

3

0

−

1

(

−

5

)

−

3

0

=

−

3

0

Answer 2

x = 15/2

Explanation:

-30-(-5x) = x

*given*

-30 + 5x = x

*subtracting a negative is the same as adding a positive*

-30 + 5x - 5x = x - 5x

*subtraction property of equality*

-30 = -4x

-30/4 = -4x/4

*division property of equality*

-15/2 = -x

×-1 ×-1

*multiplication property of negative one*

15/2 = x

*symmetric property of equality*

x = 15/2