Jasten
26.08.2020 •
Mathematics
Three times the sum of a number and four and five
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Ответ:
3x+27
Step-by-step explanation:
3(x+4+5)=
3x+12+15=
3x+27
Ответ:
Explanation:
First Step: 3x+4(-x)=-1
Second Step: Solve for x and you get x=1
Third Step: substitute x=1 into y=-x making y=-1
Making the Solution be (1,-1)