Question

1.) - 3,2 * 6х= -0,8у * (-0,7)=-5,6у2.)4(5z + 9 у - z) - 6(-a-8в+7c)=(6p-n-4m) * (-1,6)=19,6-n-6,4m*(-1,6)=6p-6(-a-8b+7c)=​

Answer 1

1.) - 3,2 * 6х=-19,2,х

-0,8у * (-0,7)=0,56у

2.)4(5z + 9 у - z) - 6(-a-8в+7c)=

=20z+36y-4z+6a+48в-42с=16z+36y+6a+48в-42с

(6p-n-4m) * (-1,6)=19,6-n-6,4m*(-1,6)

-9,6p+6,4m+1,6n=19,6-n+9,6m

-9,6p+6,4m+1,6n-19,6+n-9,6m=0

-9,6p-3,2m+2,6n=19,6

6p-6(-a-8b+7c)=6p+6a+48b-42c

Answer 2

Let's simplify each equation step by step:

1. -3.26x = -19.2x -0.8y(-0.7) = 0.56y (since -0.8*(-0.7) = 0.56)

2. 4(5z + 9y - z) - 6(-a - 8b + 7c) = 20z + 36y + 6a + 48b - 42c (6p - n - 4m)(-1.6) = -9.6p + 1.6n + 6.4m -6.4m(-1.6) = 10.24m

   6p - 6(-a-8b+7c) = 6p + 6a + 48b - 42c

Now we can write the entire system of equations:

-19.2x = 0.56y 20z + 36y + 6a + 48b - 42c = -9.6p + 1.6n + 6.4m 6p + 6a + 48b - 42c = 19.6 - n - 10.24m

Note that there are three equations and six variables (x, y, z, a, b, c, p, and m). We cannot find unique values for all variables with only three equations, so we must either make assumptions or use additional information to solve the system.