-5x = -4.5 Simply divide both sides by -5...
(-5x)/(-5) = (-4.5)/(-5)
x = 4.5/5
...then simplify the fraction, or use a calculator to find the answer.
x = 0.9 = 9/10
128
5x = 25Divide both sides by 5:x = 5
30
5x - 11 - 36 is a math equation. 5x - 11 -36 can be simplified to read 5x- 47. I suspect that there is an equals missing, ie the question was/should be: "Solve for x in 5x - 11 equals -36" 5x - 11 = -36 → 5x = -25 → x = -5
If: 5x+1 = 21 Then: 5x = 21-1 => 5x = 20 Divide both sides by 5 and so x = 4
It's a simple linear equation in 'x'.You can solve it like this:45 - 5x = 5x + 55Add 5x to each side:45 = 10x + 55Subtract 55 from each side:-10 = 10xDivide each side by 10:-1 = x
45-5x = 5x+55 -5x-5x = 55-45 -10x = 10 x = -1
128
5x-19 = 16 5x = 16+19 5x = 35 x = 7
5x = 25Divide both sides by 5:x = 5
10x - 15x + 5 = -45 + 40Combine like terms:-5x + 5 = -5Get the x term alone (subtract 5 from both sides):-5x = -10Divide both sides by -5x = 2
-5x+50 = 25 -5x = 25-50 -5x = -25 x = 5
30
x=7
This cannot be solved. It needs 2 equations to solve for 2 unknowns.
5x-10=45 +10 +10 -------------------- 55 _____ 5 x=11
45