-3x=15
Divide both sides by -3 to get + x
-3x/-3= 15/-3
Cross out -3 and -3 , divide by -3 and then becomes 1*1*x= x
x=-5
Answer: x= -5
Hi, to find the answer here you need to divide both sides by -3 to isolate x.
-3x / 3 = x
15 / -3 = -5
Now the equation looks like x = -5. You can test to make sure that's correct before submitting by replacing x with -5 in the original equation, so -3(-5) = 15.
Hope this is helpful :)
