If the entire 20-3x is over 5 then this would be the answer:

20 – 3x/5 = x -12

20 – 3x = 5(x – 12)

20 – 3x = 5x – 60

20 + 60 = 5x + 3x

80 = 8x (divide both sides by 8)

10 = x

Check:

20 – 3(10)/5 = 10 – 12

20 – 30/5 = -2

-2 = -2

x=20

well I am hoping that your 5 is only the denominator for the 3x. If the entire 20-3x is over 5 then this is not correct.

firs t multiply both sides by 5 to get rid of the denominator

100 -3x = 5x-60

gather like terms. remember to change the sign of your terms if they cross over the =.

100 + 60 = 5x +3x

160=8x

x=20

multiply everything by five to get rid of the fraction.

so now you have 100-3x=5x-60

combine like terms

100=8x-60

add 60 to both sides

160=8x

x=20 (divide by 8)

ok, once you spot a difficulty like this you will “foil”. which potential you would be multiplying each and each term interior the left-exceeded parentheses with each and each term interior the main appropriate-exceeded parentheses. a million. Multiply the 3y by using each little thing interior the main appropriate parentheses. this provides: 9y^2 -15yw + 21y 2. Now multiply -7w by using each little thing interior the main appropriate parentheses. this provides: -21yw + 35w^2 – 49w 3. ultimately, distinctive 6 by using each little thing interior the main appropriate parentheses. this provides: 18y – 30w + 40 two Now upload each little thing jointly… 9y^2 – 15yw + 21y – 21yw + 35w^2 – 49w + 18y – 30w + 40 two on account that -15yw and -21yw, -49w and -30w, and 21y and 18y have the comparable variables they could be extra jointly. 9y^2 – 36yw + 39y + 35w^2 – 79w + 40 two desire this helped!

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