Answer:
x = -4
Step-by-step explanation:
-2x - 5 = 3
Add 5 to both sides
-2x - 5 + 5 = 3 + 5
Simplify
-2x = 8
Divide both sides by -2
-2x/-2 = 8/-2
Simplify
x = -4
Answer:
a = 2
Step-by-step explanation:
Note that a point uses (x , y).
y = 1
x = a
Plug in 1 for y in the equation, and a for x:
y = 3x - 5
1 = 3a - 5
Isolate the variable, a. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.
First add 5 to both sides:
1 (+5) = 3a - 5 (+5)
1 + 5 = 3a
6 = 3a
Next, divide 3 from both sides:
(6)/3 = (3a)/3
a = 6/3
a = 2
2 is your value for a.
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Answer:
C. 3x + 8
Step-by-step explanation:
A. can be factored; Factor 5 from all terms:
(15x - 10)/5 = 3x - 2
B. can be factored; Factor 4 from all terms:
(4x + 8)/4 = x + 2
D. can be factored; Factor 2 from all terms:
(2x - 2)/2 = x - 1
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it is correct
Step-by-step explanation:
