Question 114427
{{{1.3x+2.8x=12.3}}} Start with the given equation



{{{10(1.3x+2.8x)=10(12.3)}}} Multiply both sides by 10 to move the decimal on each number 1 time. This will make every number a whole number.


{{{13x+28x=123}}} Distribute and multiply


{{{41x=123}}} Combine like terms on the left side



{{{x=(123)/(41)}}} Divide both sides by 41 to isolate x




{{{x=3}}} Divide


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Answer:

So our answer is {{{x=3}}}