Practice Solving Equations Topic Index | Algebra Index | Regents Exam Prep Center
Solve each of the following equations:
Answer x = 2 Check: 3(2)+5 = 11 6 + 5 = 11 11=11
Explanation 3x + 5 = 11 Subtract 5: 3x = 6 Divide by 3: x = 2
Answer y = 3.1
Explanation 2y + 1.8 = 4y - 4.4 Subtract 2y: 1.8 = 2y - 4.4 Add 4.4: 6.2 = 2y Divide by 2: 3.1 = y
Explanation 8(m + 5) = 16 Multiply 8m + 40 = 16 Subtract 40: 8m = -24 Divide by 8: m = -3
Answer x = 8
Answer c = -1 Check: 5(-1) - 4 - 2(-1) + 1 = 8(-1) + 2 -5 - 4 +2 + 1 = -8 + 2 -6 = -6
Explanation 5c - 4 - 2c + 1 = 8c + 2 Combine similar terms 3c - 3 = 8c + 2 Subtract 3c: -3 = 5c + 2 Subtract 2: -5 = 5c Divide by 5: -1 = c
