1, \(/t/\) : hotel, complete, suit, teacher, tall, stamp, table, tea.

2, \(/d/\) : deep, ready, dinner, middle, door.

\(#WendyDang\)

\(x-173=27\)

\(x=27+173\)

\(x=200\)

_____

\(5x-2=613\)

\(5x=613+2\)

\(5x=615\)

\(x=615:5\)

\(x=123\)

____

\(8x-6=82\)

\(8x=82+6\)

\(8x=88\)

\(x=88:8\)

\(x=11\)

____

\(19.\left(x-21\right)=19\)

\(x-21=19:19\)

\(x-21=1\)

\(x=1+21\)

\(x=22\)

____

\(25.\left(x-52\right)=175\)

\(x-52=175:25\)

\(x-52=7\)

\(x=7+52\)

\(x=59\)

____

\(\left(17+10x\right)-35=162\)

\(17+10x=162+35\)

\(17+10x=197\)

\(10x=197-17\)

\(10x=180\)

\(x=180:10\)

\(x=18\)

____

\(152-x=20\)

\(x=152-20\)

\(x=132\)

____

\(132-3x=120\)

\(3x=132-120\)

\(3x=12\)

\(x=12:3\)

\(x=4\)

___

\(145-4x=97\)

\(4x=145-97\)

\(4x=48\)

\(x=48:4\)

\(x=12\)

____

\(25.\left(41-x\right)=50\)

\(41-x=50:25\)

\(41-x=2\)

\(x=41-2\)

\(x=39\)

Bài 4:

1/ \(17+3\left(2x+24\right)=107\)

\(3\left(2x+24\right)=107-17\)

\(3\left(2x+24\right)=90\)

\(2x+24=90:3\)

\(2x+24=30\)

\(2x=30-24\)

\(2x=6\)

\(x=6:2\)

\(x=3\)

2/ \(2\left(15+3x\right)+124=178\)

\(2\left(15+3x\right)=178-124\)

\(2\left(15+3x\right)=54\)

\(15+3x=54:2\)

\(15+3x=27\)

\(3x=27-15\)

\(3x=12\)

\(x=12:3\)

\(x=4\)

3/ \(27+3.\left(17-4x\right)=54\)

\(3\left(17-4x\right)=54-27\)

\(3\left(17-4x\right)=27\)

\(17-4x=27:3\)

\(17-4x=9\)

\(4x=17-9\)

\(4x=8\)

\(x=8:4\)

\(x=2\)

4/ \(4.\left(75-5x\right)+142=302\)

\(4\left(75-5x\right)=302-142\)

\(4\left(75-5x\right)=160\)

\(75-5x=160:4\)

\(75-5x=40\)

\(5x=75-40\)

\(5x=35\)

\(x=35:5\)

\(x=7\)

5/ \(26+4.\left(6x-7\right)=118\)

\(4\left(6x-7\right)=118-26\)

\(4\left(6x-7\right)=92\)

\(6x-7=92:4\)

\(6x-7=23\)

\(6x=23+7\)

\(6x=30\)

\(x=30:6\)

\(x=5\) 

10/ \(4.\left(53-5x\right)-52=80\)

\(4\left(53-5x\right)=80+52\)

\(4\left(53-5x\right)=132\)

\(53-5x=132:4\)

\(53-5x=33\)

\(5x=53-33\)

\(5x=20\)

\(x=20:5\)

\(x=4\)

11/ \(119-3.\left(7x-4\right)=47\)

\(3\left(7x-4\right)=119-47\)

\(3\left(7x-4\right)=72\)

\(7x-4=72:3\)

\(7x-4=24\)

\(7x=24+4\)

\(7x=28\)

\(x=28:4\)

\(x=7\)

12/ \(2.\left(11x-42\right)-18=8\)

\(2\left(11x-42\right)=8+18\)

\(2\left(11x-42\right)=26\)

\(11x-42=26:2\)

\(11x-42=13\)

\(11x=13+42\)

\(11x=55\)

\(x=55:11\)

\(x=5\)

13/ \(136-16:x=134\)

\(16:x=136-134\)

\(16:x=2\)

\(x=16:2\)

\(x=8\)

14/ \(178-35:x=173\)

\(35:x=178-173\)

\(35:x=5\)

\(x=35:5\)

\(x=7\)

\(#WendyDang\)

on tối típ đy bnn ui :D