Q1) 4(4z + 8) = 80 [ z = 3]

Q1) $10 w -10 \over 2$ $=20$ [ $w = 5$]

Q1) $4w +4= 10(w -5)$ [ $w = 9$]

Q2) 6(2z + 8) = 84 [ z = 3]

Q2) $8 w + 8 \over 8$ $=11$ [ $w = 10$]

Q2) $5w +5= 2(w -8)$ [ $w = -7$]

Q3) 2(9x + 5) = 64 [ x = 3]

Q3) $7 y -9 \over 5$ $=8$ [ $y = 7$]

Q3) $2z +7= 3(z + 3)$ [ $z = -2$]

Q4) 7(2x -5) = -7 [ x = 2]

Q4) $2 x + 6 \over 10$ $=2$ [ $x = 7$]

Q4) $9w +3= 6(w + 2)$ [ $w = 3$]

Q5) 3(5y + 2) = 81 [ y = 5]

Q5) $2 w -10 \over 6$ $=1$ [ $w = 8$]

Q5) $9w -10= 2(w + 2)$ [ $w = 2$]

Q6) 6(7z -10) = 66 [ z = 3]

Q6) $7 y -5 \over 3$ $=10$ [ $y = 5$]

Q6) $5y +10= 2(y + 8)$ [ $y = 2$]

Q7) 7(4w -10) = 14 [ w = 3]

Q7) $8 y -6 \over 2$ $=29$ [ $y = 8$]

Q7) $4x +6= 2(x + 6)$ [ $x = 3$]

Q8) 2(3z + 2) = 40 [ z = 6]

Q8) $9 z -2 \over 8$ $=2$ [ $z = 2$]

Q8) $9z -7= 5(z -3)$ [ $z = -2$]

Q9) 8(10y -10) = 80 [ y = 2]

Q9) $5 x + 6 \over 8$ $=7$ [ $x = 10$]

Q9) $5z -2= 9(z -2)$ [ $z = 4$]

Q10) 10(2x -2) = 20 [ x = 2]

Q10) $9 y -4 \over 10$ $=5$ [ $y = 6$]

Q10) $5y -10= 2(y -8)$ [ $y = -2$]