4x = -36
x = -9
-16+(-10) = -26
16
26, in that situation just add the negative number to the answer to find the variable
15x26=390
To add 26 and 17 using the common core method with mental math, you can break the numbers into tens and ones. First, add the tens: 20 (from 26) plus 10 (from 17) equals 30. Next, add the ones: 6 (from 26) plus 7 (from 17) equals 13. Finally, combine the two results: 30 plus 13 equals 43. Thus, 26 plus 17 equals 43.
-16+(-10) = -26
26
16
26, in that situation just add the negative number to the answer to find the variable
It is an equation and the value of x works out as 88
15x26=390
To add 26 and 17 using the common core method with mental math, you can break the numbers into tens and ones. First, add the tens: 20 (from 26) plus 10 (from 17) equals 30. Next, add the ones: 6 (from 26) plus 7 (from 17) equals 13. Finally, combine the two results: 30 plus 13 equals 43. Thus, 26 plus 17 equals 43.
The sum of -26 and -17 is -43.
How about 20 plus 6 equals 26 as one example
so 26 = 4r so r = 6½
572 Because 2x11=22 and 13x2=26 and 22x26=572.
10 ( x = -3)