The sum of three numbers is 6. the third number is the sum of the first and second numbers. the first number is one more that the third number. find the numbers

x + y +z = 6(1)

z = x + y(2)

x = z + 1(3)

from  equation (2) :-

x + y = -z

Subtracting this from equation (1) :-

z = -z  + 6

2z =  6  so z = 3

From equation (3) :-

x = 3 + 1 =  4

And from equation (1):-

4 + y + 3 = 6

y = 6 - 7 = -1

Answer  x = 4, y = -1 and z = 3.

15

step-by-step explanation:

we are given the following expression and we are to solve it and find the product:

-13 × (-5)

solving the given expression in the standard order of solving a mathematical expression, beginning with the opening of brackets and then multiplying the terms and changing their signs.

-3 × -5 = 15 (answer is positive because when negative is multiplied with negative, it gives a positive answer)