What is the answer to |7x-5|+9=84 ?

The answer to |7x-5|+9=84 is x=-10\lor x= 80/7

Solve for x: |7x-5|+9=84

The solution is x=-10\lor x= 80/7

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∣ 7 x - 5 ∣ + 9 = 84

x = - 10 or x = \frac{80}{7}

Decimal

x = - 10, x = 11.42857 \dots

Solution steps

∣ 7 x - 5 ∣ + 9 = 84

Move

9

to the right side

∣ 7 x - 5 ∣ = 75

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

7 x - 5 = - 75 or 7 x - 5 = 75

7 x - 5 = - 75 or 7 x - 5 = 75

x = - 10 or x = \frac{80}{7}

10 = 2 ∣ c ∣

- ∣ v - 4 ∣ = - 4

x^{2} - 1 = 1 - x^{2}

∣ - 3 z - 8 ∣ + 7 = 7

x^{2} - 24 = - 2 x

What is the answer to |7x-5|+9=84 ?
The answer to |7x-5|+9=84 is x=-10\lor x= 80/7
Solve for x: |7x-5|+9=84
The solution is x=-10\lor x= 80/7