What is the answer to |-7x+4|=18 ?

The answer to |-7x+4|=18 is x=-2\lor x= 22/7

Solve for x: |-7x+4|=18

The solution is x=-2\lor x= 22/7

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∣ - 7 x + 4 ∣ = 18

x = - 2 or x = \frac{22}{7}

Decimal Notation

x = - 2, x = 3.14285 \dots

Solution steps

∣ - 7 x + 4 ∣ = 18

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

- 7 x + 4 = - 18 or - 7 x + 4 = 18

- 7 x + 4 = - 18 or - 7 x + 4 = 18

x = - 2 or x = \frac{22}{7}

9 (x + 3) \leq 7 (x + 1) + 27

(a^{\frac{2}{3}})^{12}

2 y^{2} - 9 y + 10 = 0

2 x^{2} + 7 x y - 15 y^{2}

(2 b^{4})^{- 1}