What is the answer to |-4x+7|-20=15 ?

The answer to |-4x+7|-20=15 is x=-7\lor x= 21/2

Solve for x: |-4x+7|-20=15

The solution is x=-7\lor x= 21/2

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∣ - 4 x + 7 ∣ - 20 = 15

x = - 7 or x = \frac{21}{2}

Decimal Notation

x = - 7, x = 10.5

Solution steps

∣ - 4 x + 7 ∣ - 20 = 15

Move

20

to the right side

∣ - 4 x + 7 ∣ = 35

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

- 4 x + 7 = - 35 or - 4 x + 7 = 35

- 4 x + 7 = - 35 or - 4 x + 7 = 35

x = - 7 or x = \frac{21}{2}

4 + 3 ∣ - 5 - 2 v ∣ = 37

- ∣ 8 m - 1 ∣ + 9 = 2

14 + 2 ∣ 3 x + 5 ∣ = 26

∣ x - (3 x + 2) ∣ = 4

x^{2} - 4 ∣ x ∣ - 4 = 0

What is the answer to |-4x+7|-20=15 ?
The answer to |-4x+7|-20=15 is x=-7\lor x= 21/2
Solve for x: |-4x+7|-20=15
The solution is x=-7\lor x= 21/2