What is the value of x in the proportion (x-1) / 5 = (4x+2) / 35

(x-1) / 5 = (4x + 2) / 35

lets start off by multiplying each side by 5

(x-1) = 5 (4x + 2) / 35

then let's multiply both sides by 35

35 (x-1) = 5 (4x + 2)

now let's distribute the coefficients (5 and 35) into everything in the brackets

35 times x is 35x

35 rimes 1 is 35

5 times 4x is 20x

5 times 2 is 10

(35x - 35) = (20x + 10)

we can add 35 to both sides

35x = 20x + 45

then subtract 20x on both sides

15x = 45

then divide both sides by 15

x = 3