Question

Rezolva in Q ecuatiile:
a) 1,5+x= -7,5
b) y-5/6=1/2
c) -7/2 * x=0,5
d) y: 5/6=17/2

VA ROG,AM NEVOIE URGENT

Answer 1

Explicație pas cu pas:

a). 1.5+x= -7.5

x= -9

b). y- 5/6 = 1/2

y= 1/2 + 5/6

amplificam

y=3/6+5/6

y=8/6

simplificam pt ca fractia sa fie ireductibila

y=4/3

c). -7/2 × x = 0.5

x= 0.5 ÷ (-7/2)

0.5 = 5/10 = 1/2

x= 1/2 × (-2/7)

x= -1/7

d). y÷5/6 = 17/2

y= 17/2 × 5/6

y = 85/12