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To solve the equation 21 = -20 - 8(2x - 0.5), we can follow these steps:
1. Distribute the -8 to the terms inside the parentheses:
21 = -20 - 8 * 2x + 8 * 0.5
2. Simplify the equation by performing the multiplication:
21 = -20 - 16x + 4
3. Combine like terms:
21 = -16x - 16
4. Move the constant term to the other side of the equation by adding 16 to both sides:
21 + 16 = -16x - 16 + 16
37 = -16x
5. Divide both sides by -16 to solve for x:
x = 37 / -16
6. Simplify the fraction if possible:
x ≈ -2.3125
Therefore, the solution to the equation 21 = -20 - 8(2x - 0.5) is approximately x ≈ -2.3125.
1. Distribute the -8 to the terms inside the parentheses:
21 = -20 - 8 * 2x + 8 * 0.5
2. Simplify the equation by performing the multiplication:
21 = -20 - 16x + 4
3. Combine like terms:
21 = -16x - 16
4. Move the constant term to the other side of the equation by adding 16 to both sides:
21 + 16 = -16x - 16 + 16
37 = -16x
5. Divide both sides by -16 to solve for x:
x = 37 / -16
6. Simplify the fraction if possible:
x ≈ -2.3125
Therefore, the solution to the equation 21 = -20 - 8(2x - 0.5) is approximately x ≈ -2.3125.
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19 октября 2023 08:12
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