What is the answer to |4y+7|=13 ?

The answer to |4y+7|=13 is y=-5\lor y= 3/2

Solve for y: |4y+7|=13

The solution is y=-5\lor y= 3/2

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∣ 4 y + 7 ∣ = 13

y = - 5 or y = \frac{3}{2}

Decimal

y = - 5, y = 1.5

Solution steps

∣ 4 y + 7 ∣ = 13

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

4 y + 7 = - 13 or 4 y + 7 = 13

4 y + 7 = - 13 or 4 y + 7 = 13

y = - 5 or y = \frac{3}{2}

∣ r ∣ = - 8

x ∣ x - 2 ∣ = 8

\frac{∣ 3 x + 12 ∣}{9} = 0

∣ 3 x - 5 ∣ = - 15

2 ∣ - 8 x ∣ + 8 = 80