Question

8 + 3x = 1 + 7.9x can someone help me out?

Answer 1

x=
`(10)/(7)`

Explanation:

8 + 3x = 1 + 7.9x

1. multiply everything by 10 so there is no longer a decimal in the equation

80+30x=10+79x

2. get the x on one side so we -10 and 30x from both side

70=49x

3. divide by 49 on each side as we want to find the value of x

`(70)/(49)`=x

4. the fraction can be simplified to

`(10)/(7)`=x

4. the final answer is

`(10)/(7)`=x

Answer 2

GROUP LIKE TERMS TOGETHER.

`3x - 1.79x = 1 - 8 \\ 1.21x = - 7 \\ (1.21x)/(1.21) = ( - 7)/(1.21 \\ ) \\ x = 5.7851239669`