Question

Ayudaaaaaa xfa urgenteee

5/2 + 1/5 = 2/3 - x

2/7 - 1/4 = 3-x

Answer 1

5/2 + 1/5 = 2/3 - x
saca mcm:
(25+2)/10 = (2-3x)/3
27/10 = (2-3x)/3
3*27 = 10*(2-3x)
81 = 20 - 30x
30x = 20-81
30x = -61
x = -61/30

2/7 - 1/4 = 3 - x
(2*4 - 1*7)/28 = 3-x
1/28 = 3-x
x = 3 - 1/28
x = (3*28 - 1)/28
x = 83/28