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

User Squirrel
by
6.6k points

2 Answers

4 votes

Answer:

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

User Havoc P
by
6.3k points
6 votes

GROUP LIKE TERMS TOGETHER.


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

User Sidharth Shah
by
6.0k points
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