|2x-5|+3=8Help meeeeeeee
Ответы на вопрос
|2×5-5|+3=8
......
Sure, I'll be glad to help you solve the equation |2x - 5| + 3 = 8.
To solve this equation, we need to get rid of the absolute value sign. Remember that the absolute value of a number can be positive or negative, depending on whether the expression inside the absolute value bars is positive or negative.
Let's break the equation into two cases:
Case 1: (2x - 5) is positive (meaning 2x - 5 ≥ 0): In this case, |2x - 5| will simply be equal to (2x - 5). So we can rewrite the equation as follows:
(2x - 5) + 3 = 8
Now, solve for x:
2x - 5 + 3 = 8
2x - 2 = 8
2x = 8 + 2
2x = 10
x = 10 / 2
x = 5
So, for this case, x = 5.
Case 2: (2x - 5) is negative (meaning 2x - 5 < 0): In this case, |2x - 5| will be equal to -(2x - 5) because the expression inside the absolute value bars is negative. So we can rewrite the equation as follows:
-(2x - 5) + 3 = 8
Now, solve for x:
-2x + 5 + 3 = 8
-2x + 8 = 8
-2x = 8 - 8
-2x = 0
x = 0 / -2
x = 0
So, for this case, x = 0.
Therefore, the solutions to the equation are x = 5 and x = 0. These are the values of x that make the original equation true. You can always plug them back into the original equation to confirm their validity.
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