Question 168843
what you do to one side you must do to the other side of the equals sign. Combine all like terms where you want them trying to move the variables in such a way as to end up with a positve number in front of the variable.
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so you would take the -3x term on the right and add 3x to it thus eliminating it from the right side.......but you must also add 3x to the left so we end up with 5x+3x= 8x on the left.....now lets take care of the constant...to eliminate the -3 on the left we must add 3 to it......and we must add that same amount 3 to the right side making 13+3=16

so we end up with 8x=16 after that process.....now to get x by itself we must divide both sides by 8.....which gives us{{{highlight(x=2)}}}