Let's solve each equation step by step:
1) (x+2) + x = x + 2 + x = 2x + 2 = 2x = x = 7/x = 3.5
2) x + (7 + x) = 1x + 7 + x = 12x + 7 = 12x = x = 2
3) x + 2x - 5 = 43x - 5 = 43x = 4x = 15
4) x + (4 + x) + x = 1x + 4 + x + x = 13x + 4 = 13x = 1x = 4
Therefore, the solutions for each equation are1) x = 3.2) x = 3) x = 14) x = 4
Let's solve each equation step by step:
1) (x+2) + x =
x + 2 + x =
2x + 2 =
2x =
x = 7/
x = 3.5
2) x + (7 + x) = 1
x + 7 + x = 1
2x + 7 = 1
2x =
x = 2
3) x + 2x - 5 = 4
3x - 5 = 4
3x = 4
x = 15
4) x + (4 + x) + x = 1
x + 4 + x + x = 1
3x + 4 = 1
3x = 1
x = 4
Therefore, the solutions for each equation are
1) x = 3.
2) x =
3) x = 1
4) x = 4