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How to solve the equation x / 50 - (x + 60) / 90 = 2
9x-5(x+60)=900
4x-300=900
4x=1200
x=300
How to solve the equation "x + 90: x = 5:4"
It's just solving this equation
X+90:X=5:4
4X+360=5X
X=360
The product of internal terms is equal to the product of external terms. It seems that it has not been calculated for many years. You should know that now. I read their answers and changed them
I'd like to ask, how to make the equation for X / 2-x / 5 = 90?
（5X-2X）/10=90
3X=9
X=3
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