To solve the equations:
1) -7 + x = 13Add 7 to both sides:x = 13 + 7x = 20
2) x + (-15) = 10Add 15 to both sides:x = 10 + 15x = 25
3) -6 + x = 5Add 6 to both sides:x = 5 + 6x = 11
Therefore, the solutions are:1) x = 202) x = 253) x = 11
To solve the equations:
1) -7 + x = 13
Add 7 to both sides:
x = 13 + 7
x = 20
2) x + (-15) = 10
Add 15 to both sides:
x = 10 + 15
x = 25
3) -6 + x = 5
Add 6 to both sides:
x = 5 + 6
x = 11
Therefore, the solutions are:
1) x = 20
2) x = 25
3) x = 11