<span>The negative symbol or negative sign simply indicates that
for the C ion, there are more electrons than proton. Since it is – alone without
number, this automatically indicates a number of -1. This means that there is
one more electron than proton.</span>
Equation: 4x + 2 = x - 7
Solve equation
Subtract x from both side
3x + 2 = -7
Subtract 2 from both side
3x = -9, x = -3
Solution: the number is -3
Answer:
subtract 3 from both sides.
First one is=125 next one= 625