What is the answer to |7x+5|-21=0 ?

The answer to |7x+5|-21=0 is x=-26/7 \lor x= 16/7

Solve for x: |7x+5|-21=0

The solution is x=-26/7 \lor x= 16/7

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∣ 7 x + 5 ∣ - 21 = 0

x = - \frac{26}{7} or x = \frac{16}{7}

Decimal Notation

x = - 3.71428 \dots, x = 2.28571 \dots

Solution steps

∣ 7 x + 5 ∣ - 21 = 0

Move

21

to the right side

∣ 7 x + 5 ∣ = 21

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

7 x + 5 = - 21 or 7 x + 5 = 21

7 x + 5 = - 21 or 7 x + 5 = 21

x = - \frac{26}{7} or x = \frac{16}{7}

∣ 3 x + 7 ∣ - 4 = - 2

∣ x + 6 ∣ - 10 = 3

∣ 6 - 5 r ∣ = 0

∣ z ∣ + z = 1

∣ 3 x - 2 ∣ - x = 4

What is the answer to |7x+5|-21=0 ?
The answer to |7x+5|-21=0 is x=-26/7 \lor x= 16/7
Solve for x: |7x+5|-21=0
The solution is x=-26/7 \lor x= 16/7