having problem with this please help
∛3x+5+7=3
I have a feeling there should be brackets somewhere
the way it stands .... assuming ∛(3x)
∛(3x) = 3 - 5 - 7
∛(3x) = -9
3x = -729
x = -243
If I take it just the way you typed it
∛3x + 5 + 7 = 3
∛3x = -9
x = -9/∛3 = appr -6.24
PLease let me know where the brackets should be
I believe it's
∛(3x+5)+7=3
there is NO solution for this question.
Cheers!
da.guy1[at]yah oo
Of course there's a solution.
∛(3x+5)+7=3
∛(3x+5) = -4
3x+5 = (-4)^3 = -64
3x = -69
x = -23
Check:
∛(-69+5)+7 = ∛-64 + 7 = -4+7 = 3
To solve the equation ∛(3x + 5) + 7 = 3, we need to isolate the variable x. Here are the steps to follow:
Step 1: Subtract 7 from both sides of the equation:
∛(3x + 5) = 3 - 7
∛(3x + 5) = -4
Step 2: Cube both sides of the equation to remove the cube root:
(∛(3x + 5))^3 = (-4)^3
3x + 5 = -64
Step 3: Subtract 5 from both sides of the equation:
3x = -64 - 5
3x = -69
Step 4: Finally, divide both sides by 3 to solve for x:
x = -69 / 3
x = -23
Therefore, the solution to the equation ∛(3x + 5) + 7 = 3 is x = -23.