18 △ 3x equation

18 △ 3x equation

18÷3=x
x=6

If the equation 3x + 4 = 0 and 3x + 4K = 18 about X are the same solution equation, then K=______ ．

By solving the equation 3x + 4 = 0, we can get x = - 43. ∵ 3x + 4 = 0 and 3x + 4K = 18 are the same solution equation, ∵ x = − 43 is also the solution of 3x + 4K = 18, ∵ 3 × (- 43) + 4K = 18, we can get k = 112. So the answer is: 112

3x = 18, the equation is solved and checked,

3x=18
x=6
Left = 3 * 6 = 18 = right

36x ^ 2-25 = 0, 3x ^ 2-18 = 0?

36x^2-25=0
x²=25/36
X = plus or minus 5 / 6
3x^2-18=0
x²=18/3
x²=6
X = root sign 6