20. Simplify and solve the linear equation:
15 (7-4)-2 (y-9) + 5 (y+6)=0
Answers
Answered by
0
Answer:
-31
Step-by-step explanation:
15(7-4)-2(y-9)+5(y+6)=0
15(7-4)-2(y-9)+5(y+6)=0=>15(3)-2(y-9)+5(y+6)=0
15(7-4)-2(y-9)+5(y+6)=0=>15(3)-2(y-9)+5(y+6)=0=>45-2y+18+5y+30=0
15(7-4)-2(y-9)+5(y+6)=0=>15(3)-2(y-9)+5(y+6)=0=>45-2y+18+5y+30=0=>93+3y=0
15(7-4)-2(y-9)+5(y+6)=0=>15(3)-2(y-9)+5(y+6)=0=>45-2y+18+5y+30=0=>93+3y=0=>3y= -93
15(7-4)-2(y-9)+5(y+6)=0=>15(3)-2(y-9)+5(y+6)=0=>45-2y+18+5y+30=0=>93+3y=0=>3y= -93=>y= -93÷3
15(7-4)-2(y-9)+5(y+6)=0=>15(3)-2(y-9)+5(y+6)=0=>45-2y+18+5y+30=0=>93+3y=0=>3y= -93=>y= -93÷3=>y = -31
Answered by
0
Answer:
y=-31
Step-by-step explanation:
15(7-4)-2(y-9)+5(y+6)=0
45-2(y-9)+5(y+6)=0
45-2(y-9)+5(y+6)-45=0-45
-2(y-9)+5(y+6)=-45
3y+48=-45
3y+48-48=-45-48
3y=-93
y=-93 divide by 3
y=-31
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