1. Find the value of
a-3+5a-2 =
2. What is the reciprocal of -1/5?
3. The reciprocal of 2 is ?
1. Simplifying
a + -3 + 5a + -2 = 0
Reorder the terms:
-3 + -2 + a + 5a = 0
Combine like terms: -3 + -2 = -5
-5 + a + 5a = 0
Combine like terms: a + 5a = 6a
-5 + 6a = 0
Solving
-5 + 6a = 0
Move all terms containing a to the left, all other terms to the right.
Add '5' to each side of the equation.
-5 + 5 + 6a = 0 + 5
Combine like terms: -5 + 5 = 0
0 + 6a = 0 + 5
6a = 0 + 5
Combine like terms: 0 + 5 = 5
6a = 5
Divide each side by '6'.
a = 0.8333333333
Simplifying
a = 0.8333333333
2. reciprocal of(-1) / 5 = -0.
3. 0.5
I relooked at it. Is this all correct?