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find the value of x if 3x - 20 = 130?
find the value of x if 8x-2=-9+7x?
find the value of x if x + 6 = 33?

Verified Answer :

Scryt

1.
\(3x-20=130\)
\(3x=130+20\)
\(3x=150\)
\(x=50\)

2.
\(8x-2=-9+7x\)
\(8x-7x=-9+2\)
\(x=-7\)

3.
\(x+6=33\)
\(x=33-6\)
\(x=27\)

those tasks are very simple, you should try to solve them on you're own first :)

\(3x-20=130\ \ \ /+20\\\\3x-20+20=130+20\\\\3x=150\ \ \ /:3\\\\3x:3=150:3\\\\x=50\)



\(8x-2=-9+7x\ \ \ /+2\ \ /-7x\\\\8x-7x=-9+2\\\\x=-7\)



\(x+6=33\ \ \ /-6\\\\x=33-6\\\\x=27\)

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