208k views
5 votes
Solve the following equations
solve for x -- 2x - 2 = 20
solve for a -- 5a + 2a + 1 = 50​

User Pvanhouten
by
6.8k points

1 Answer

4 votes

1. solve for x -- 2x - 2 = 20

  • 2x - 2 = 20

Add 2 on both sides,

  • 2x - 2 + 2 = 20 + 2
  • 2x = 22

Divide both sides by 2,

  • x = 11

2. solve for a -- 5a + 2a + 1 = 50

  • 5a + 2a + 1 = 50

Add like terms,

  • 7a + 1 = 50

Subtract 1 from both sides,

  • 7a + 1 - 1 = 50 - 1
  • 7a = 49

Divide both sides by 7,

  • a = 7
User Sam Bobel
by
7.6k points

No related questions found