braydenyindbsh4711
03.12.2020 •
Mathematics
Solve 6x+8+7x-9=90 this is pretty hard tbh
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Ответ:
x=7
Step-by-step explanation:
6x+8+7x-9=90
13x+8-9=90
13x-1=90
add 1 to both sides
= 13x=91
divide both sides by 13
= x=7
Ответ:
I think the answer is 40 sorry if it is wrong.
Step-by-step explanation: