What is the value of u? 6.4u−5.1u=−3.25

-2.5

Step-by-step explanation:

6.4u-5.1u=-3.25

1.3u=-3.25

u=-3.25/1.3

u=-2.5

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)