Respuesta :
Answer: −
1
(
−
5
)
−
=
−
3
0
Step-by-step 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:
x = 15/2
Step-by-step 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
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