4. Find the value of the unknown variable in the given equation 5x +5 = 12 - 2.
A. x = - 5
B. x = - 2
C. x = 1
D.x = 7

6. Which of the following is a solution of the equation | 2x - 8 | = 4 ?
A. x = {6 & 2}
B. x = {-6 & 2}
C. x = {-6 &-2}
D. x = {-6 > 2}

7. What is the solution set of the inequality 1 5y-20 1 < 25 ?
A. y < 9 or y > - 1
C. y ≥ - 11 or y ≤ 5
B. y ≥ 11 and y ≤ 5
D. y > -9 and y < 1

8. Which of the following is a solution of the equation | -2a + 5 | = 9 ?
A. a = {7 & -2}
B. a = {-7 & 2 }
C. a = {-7 & -2}
D. a = {-7 > 2}

9. Which of the following is a solution of the equation 5 | m - 2 | -15 = 5 ?
A. m = {6 & -2}
B. m = {2 & -6}
C. m = {-6 & -2}
D. a = {-6 > 2}

10. Which of the following is a solution of the equation 5 | m - 2 | -15 = 5 ?
A. m = { 14 & 2}
B. m = { 28 & 4}
C. m = { 14 & -2 }
D. a = { 28 & 2}

Please answer correctly, please don't answer the question if you don't know the answer just to get points, thank you in advance^ω^​