Answer:
x = 8/13
Step-by-step explanation:
6 - 3x - 3/5(15x + 20) = 7(2x/7 - 2) - x
6 - 3x - 9x - 12 = 2x - 14 - x
6 - 12 + 14 = 2x - x + 3x + 9x
8 = 13x
x = 8/13
Answer:
rationalize my skill capability
Step-by-step explanation:
Answer:
15
Step-by-step explanation:
Answer:
x = - 5, x = - 3
Step-by-step explanation:
Given
x² + 15 = - 8x ( add 8x to both sides )
x² + 8x + 15 = 0 ← in standard form
Consider the factors of the constant term (+ 15) which sum to give the coefficient of the x- term (+ 8)
The factors are 5 and 3, since
5 × 3 = 15 and 5 + 3= 8, thus
(x + 5)(x + 3) = 0 ← in factored form
Equate each factor to zero and solve for x
x + 5 = 0 ⇒ x = - 5
x + 3 = 0 ⇒ x = - 3
