How many solutions are there in the equation 5x+1=3x+7

Okay so lets start with

5x+1=3x+7

Lets move the 3x to the other side

2x+1=7

Than the 1 if moved over

2x=6

Divide both sides by 2

x=3

There is only one answer and that is 3

step-by-step explanation:

see if this :

(a) {a₁, a₁r, a₁r², … a₁rⁿ⁻¹, …}

(b) $59 398

step-by-step explanation:

(a) the annual sequence of profits

aₙ = a₁rⁿ⁻¹

the model for the sequence of profits is {a₁, a₁r, a₁r², … a₁rⁿ⁻¹, …} .

(b) profit after 15 yr

  a₁ = $ 30 000

  r = 1.05

a₁₅ = 30 000 × 1.05¹⁴

a₁₅ = 30 000 × 1.979 93

a₁₅ = $59 398

the profit in year 15 will be $59 398.