Question

solve the following
1. 3 (x+2)-2 (x-1)=7
2. 2x-5 =3 (x-5)
3. x/4 -8=1
4. 3 (x+1)= 12+4 (x-1)

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Answer 1

Answer:

answers are given for the given problems

Answer 2

Answer:

1) x= (-1)

2) x=10

3) x=36

4) x= (-5)

Step-by-step explanation:

now,

1) 3(x+2)-2 (x-1)=7

 => 3x+6 - 2x +2 = 7 ----------------- (open the brackets)

=> 3x-2x+6+2=7------------------  (arrange to the like terms)

=> x+8=7

=> x=7-8 -------------------- (bring it to other side)

=> x= (-1)

2) 2x-5 =3 (x-5)

=> 2x -5= 3x - 15 ----------------- (open the brackets)

=> 2x-3x=5-15 ------------------  (bring lke terms together in other sides)

=> -x = -10

=> x=10 ------------- (cut the minus symbol on both sides)

3) x/4 -8=1

=> $\frac{x-32}{4}$=1 ------------ (LCM)

=> x-32=4 ----(division in LHS becomes multiplication when moving to RHS)                      

=> x=4+32

=> x=36

4) 3(x+1) = 12 +4(x-1)

=> 3x+3=12+4x-4 ----------------- (open the brackets)

=> 3x+3=8+4x

=> 3x-4x=8-3 ------------------  (bring lke terms together in other sides)

=> -x=5

=> x= (-5)

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