5x+45=2x+18 math problem?

5x + 45 = 2x + 18
3x = - 27
x = - 9

Answer: x = - 9

Proof:
5(- 9) + 45 = 2(- 9) + 18
- 45 + 45 = - 18 + 18
0 = 0

definite the respond is; "No answer or not one of the above.", as a results of fact genuinely the fee can in no way provide you a unfavourable quantity. If the equation have been |5x + 13| = 7 then you definately could use the valuables |a| = a; x ? 0 and |a| = -a; x < 0 to write those 2 equations: 5x + 13 = 7 and -5x - 13 = 7 fixing the two equations: 5x = -6 and -5x = 20 x = -6/5 and x = -4

3x = - 27

x = - 9

5x+45=2x+18 (minus 2x on both sides)
2x-5x= 3x
3x+45=18 (minus 45 on both sides)
3x= -27 (divide by 3)
x = -9

5x + 45 = 2x + 18
5x - 2x + 45 = 18
3x + 45 = 18
3x = 18 - 45
x = -27/3
x = -9

5x+45=2x+18
3x=-27
x=-9

unknowns one side, numbers one side

that's all folks

Take the terms with x to one side and independant terms to the other side. When you take a factor from one side of an equation to the other side, remember to change the sign (ie. - to +, + to -, * to / and / to *). When like terms are on the same side, do the arithmetics.

The answer is negative 9.

Solution:

5x - 2x = 18 - 45
3x = - 27
x = - 27 / 3
x = - 9

5x=2x-27
3x=-27
x=-9