Question

determine a raiz de cada equação: A) 10x-8=3x+6 B)5+2(3y-1)=7y+6 C)4t-(2t-5)= 3-4(2t+3)

Answer 1

Resposta:

A) 10x-8=3x+6

B)5+2(3y-1)=7y+6

C)4t-(2t-5)= 3-4(2t+3)

Explicação passo-a-passo:

A) 10x-8=3x+6

10x-3x=6+8

7x=14

x=14/7

x=2

B)5+2(3y-1)=7y+6

5+6y-2=7y+6

6y-7y=6-5+2

-y=1+2

-y=3

y=-3

C)4t-(2t-5)= 3-4(2t+3)

4t-2t+5=3-8t-12

2t+5= -9-8t

2t+8t=-9-5

10t= -14

t= -14/10