what is negative 7 plus 8 equal

Question

thanks

Answer 1

-7+8

subtract their absolute values and use the sign of the number with the greater absolute value (or the number farthest away from 0)

l8l-l-7l=8-7=1, so the answer is 1 or +1 because 8 has the greater absolute value

 

another example:

-12+5

l-12l-l5l=12-5=7; now use the sign of the number with the greater absolute value which is -12, so use the negative sign

the answer is -7  (also -12 is farther away from 0 than 5 is)

Answer 2

-7 + 8 = 1.......when you have two different signs, treat your operation as a subtraction because you are going on opposite directions on the number line.  You subtract the numbers and keep the sign of the larger value, here it is positive 8; therefore, your final answer is positive 1.