What is the answer to -2|7-9c|+7=-15 ?

The answer to -2|7-9c|+7=-15 is c=-4/9 \lor c=2

Solve for c: -2|7-9c|+7=-15

The solution is c=-4/9 \lor c=2

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- 2 ∣ 7 - 9 c ∣ + 7 = - 15

c = - \frac{4}{9} or c = 2

Decimal Notation

c = - 0.44444 \dots, c = 2

Solution steps

- 2 ∣ 7 - 9 c ∣ + 7 = - 15

Move

7

to the right side

- 2 ∣ 7 - 9 c ∣ = - 22

Divide both sides by

- 2

∣ 7 - 9 c ∣ = 11

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

7 - 9 c = - 11 or 7 - 9 c = 11

7 - 9 c = - 11 or 7 - 9 c = 11

c = - \frac{4}{9} or c = 2

\frac{d}{3} = 3

20 = ∣ 9 - 4 y ∣

∣ 5 x - 2 ∣ = 13

∣ 5 x - 7 ∣ + 1 = 3 x

∣ 2 x + 5 ∣ - 10 = 3 x

What is the answer to -2|7-9c|+7=-15 ?
The answer to -2|7-9c|+7=-15 is c=-4/9 \lor c=2
Solve for c: -2|7-9c|+7=-15
The solution is c=-4/9 \lor c=2