What is the answer to |5x|+5=45 ?

The answer to |5x|+5=45 is x=-8\lor x=8

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|5x|+5=45

∣ 5 x ∣ + 5 = 45

x = - 8 or x = 8

Solution steps

∣ 5 x ∣ + 5 = 45

Move

5

to the right side

∣ 5 x ∣ = 40

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

5 x = - 40 or 5 x = 40

5 x = - 40 or 5 x = 40

x = - 8 or x = 8

6 n = 30 + 3 (n - 4)

(\frac{5}{4} p q^{5}) (- \frac{7}{5} q^{6})

\frac{4}{3} π 0. 9^{3}

x^{3} - 7 x + 6

- 5 (x - 6) = 15