Question

x(x-5)/10+(1-2x)/5=(3-x)/4

Answer 1

.Ola Reejane

x*(x - 5)/10 + (1 - 2x)/5 = (3 - x)/4

mmc(4,5,10)  = 20

2x*(x - 5) + 4*(1 - 2x) = 5*(3 - x) 

2x² - 10x + 4 - 8x - 15 + 5x = 0

2x² - 13x - 11 = 0 

delta
d² = 13² - 4*2*(-11) = 169 + 88 = 257
d = √257

x1 = (13 + √257)/4 
x2 = (13 - √257)/4