5x+3-4x=15-4x+3
x+3=18-4x
5x+3=18
5x=15
x=3
Answer:
5
Step-by-step explanation:
y-intercept of y=3x+5 is 5
Answer: First Option : Sₙ= n/2(a₁ + aₙ)
Step-by-step explanation:
The nth partial sum of an arithmetic sequence or the sum of the first n terms of the arithmetic series can be defined as the sum of a finite number of term in an arithmetic sequence.
It is calculated using the formula:
Sₙ= n/2(a₁ + aₙ)
Where :
a₁ = First term
aₙ = last term
n = number of terms
X=number; then:
9x+5=38+6x
9x-6x=38-5
3x=33
x=33/3
x=11