Question

Rezolvati ecuatiile;

a)3/4c=12

b)3/5y=6

c)-8 =t/5

d)-81/z -(-10)

e)15=3/7b

dau 20 puncte

Answer 1

Răspuns:

Explicație pas cu pas:

a)3/4c=12           c=12×4/3=16

b)3/5y=6            y=6×5/3=10

c)-8 =t/5               t=-8×5=-40

d)-81/z= -(-10)              z=-10/81

e)15=3/7b                      b=15×7/3=35

Answer 2

Răspuns:

a) 3/4c = 12 => c = 12 * 4/3 => c = 4 * 4 => c = 16

b) 3/5y = 6 => y = 6 * 5/3 => y =  2*5 => y = 10

c) -8 = t/5 =>t = -8 * 5 => t = -40

d) -81/z = -(-10)=> z = -10/81

e) 15 = 3/7b => b = 15* 7/3 => b = 5 * 7 => b = 35