How do i solve 3x-4/14 = 9/10

ratios and proportions

Hello from MrBillDoesMath!

x = 83/210

Discussion:

3x -(4/14) = 9/10                           => multiply both sides by 70

70*3x - (4/14)70 = (9/10) * 70      => as 70/14 = 5 and 70/10 = 7 and 70*3 = 210

210x   - 4(5)  = 9*7                       => as 9*7 = 63

210x - 20 = 63                             => add 20 to both sides

210x = 63 + 20 = 83                    => divide both sides by 210

x = 83/210

Thank you,

MrB

I might have learned it a different way but this is the way that i do it.

3x-4/14=9/10

You change the subtraction to addition

3x+4/14=9/10

Then you change the fractions to decimals

answer: all the values are within because it has a pattern that repeats from -6 to 4.

good luck!

a=24; b=12

step-by-step explanation:

a/b=2: 1

a=2b

36/(1+2)=12

b=12

a=24