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The equation below has one solution 9x - 10 equals 3x + 2
what is the solution to the equation?
A.-2
B.-1
C.1
D.2


Sagot :

Answer: D

Isolate the variable by dividing each side by factors that don't contain the variable. This will give you the answer below:

X = 2 = Answer D

Answer:

D. 2

Step-by-step explanation:

One way by solving the equality:

[tex]////// 9x - 10 = 3x + 2////// 9x - 10 + 10 = 3x +2 + 10////// 9x - 3x = 3x + 12 - 3x////// 6x = 12///// 6x/6 = 12/6x = 2[/tex]

I can't put each on a line (the site isn't allowing it), so the //// means it goes to another line.

Another way is by replacing x by each of the possible solutions and see which makes the equality true.