SOLUTION: do u know 5x+12=3x-6

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Question 67958This question is from textbook Pre-Algebra
: do u know 5x+12=3x-6 This question is from textbook Pre-Algebra

Answer by funmath(2933) About Me  (Show Source):
You can put this solution on YOUR website!
do u know 5x+12=3x-6
5x+12=3x-6
5x-3x+12=3x-3x-6
2x+12=0-6
2x+12=-6
2x+12-12=-6-12
2x+0=-18
2x=-18
2x/2=-18/2
highlight%28x=-9%29
Check by letting x=-9 and see if both sides =.
5%28-9%29%2B12=3%28-9%29-6
-45%2B12=-27-6
-33=-33 We're right!
Happy Calculating!!!