What is the answer to 20=|-5-7x|5 ?

The answer to 20=|-5-7x|5 is x=-9/7 \lor x=-1/7

Solve for x: 20=|-5-7x|5

The solution is x=-9/7 \lor x=-1/7

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20 = ∣ - 5 - 7 x ∣ 5

x = - \frac{9}{7} or x = - \frac{1}{7}

Decimal

x = - 1.28571 \dots, x = - 0.14285 \dots

Solution steps

20 = ∣ - 5 - 7 x ∣ \cdot 5

Switch sides

∣ - 5 - 7 x ∣ \cdot 5 = 20

Divide both sides by

5

∣ - 5 - 7 x ∣ = 4

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

- 5 - 7 x = - 4 or - 5 - 7 x = 4

- 5 - 7 x = - 4 or - 5 - 7 x = 4

x = - \frac{9}{7} or x = - \frac{1}{7}

∣ x + 4 ∣ - 6 = 0

∣ 9 n + 2 ∣ = - 61

2 ∣ 3 x ∣ = 8

x^{2} + 6 x - 3 = 8

∣ x + 1 ∣ - 2 ∣ x - 1 ∣ = 0

What is the answer to 20=|-5-7x|5 ?
The answer to 20=|-5-7x|5 is x=-9/7 \lor x=-1/7
Solve for x: 20=|-5-7x|5
The solution is x=-9/7 \lor x=-1/7