Q1: Solve the following problem:
-52 + 15 =
Q2: Solve the following problem:
-30 – 90 +25 =
Q3: Simplify the following expression:
121÷11+3∙4÷2
Q4: Simplify the following expression:
15(x – 6) + 8
Q5: Solve the following equation:
6x – 15 = 15
Q1: -52 + 15 = -37
Q2: -30 - 90 + 25 = -95
Q3: 121 ÷ 11 + 3 * 4 ÷ 2 = 11 + 3 * 2 = 11 + 6 = 17
Q4: 15(x - 6) + 8 = 15x - 90 + 8 = 15x - 82
Q5: 6x - 15 = 15
Add 15 to both sides:
6x = 30
Divide both sides by 6:
x = 5