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This is a fairly straightforward equation.
1.5x-2.5x-o.5x=-3 can be written as (1.5-2.5-0.5)x =-3
Add the values in the brackets together and you have -1.5x=-3
divide both sides by -1.5 to leave you with x=2
If you replace the x-values in the origianl equation you get
1.5x2-2.5x2-o.5x2=-3 or 3-5-1=-3
QED
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What is 15x plus 50 equals 135?
15X + 50 = 135 subtract 50 from both sides15X = 135-5015X = 85X = 5 and 2/3 or 17/3
How do you solve 5x2 plus 15x equals 0?
5x2 + 15x = 0 5x(x + 3) = 0 therefore, x = 0 or x + 3 = 0 that is, x = 0 or x = -3
15x-3 equals 2x plus 1?
OK, SO 15x-3 = 2x+1 15x - 3 + 3 = 2x + 1 + 3 (add three to each side) 15x=2x+4 (simplIfy) 15x-2x=2x-2x+4 (subtract 2x from each side) 13x=4 (simplify) (13x/13)=(4/13) (divide each side by 13) x≈0.30769231
How do you solve 6x-2 equals x plus 13?
6x-2=x+135x=15x=3
What is the answer to 7x plus 3 equals 15x plus 9?
7x + 3 = 15x + 97x+3 = 15x+9 7x-15x = 9-3-8x = 6x = -6/8 => -3/4Explanation of working out the problem:7x+3=15x+9We want X's on one side and numbers on opposite side of Equal.When we move from one side to another, we also replace + with - and vice versa.7x-15x=9-3-8x=6We divide both sides with 2 so that we get a smallest possible answer.-4x=3I hate dealing with negative X's. it is so... negative..Multiply both sides with -1 and you get:4x=-3If you need to find X alone, then divide by 4 on both sides.x=-3/4 or in decimal terms it will be:x=-0.75And that is the end of the story :-)
