)Ben is showing his work in simplifying (3.9 − 9.4) − 0.6 + 6.1. Identify any error in his work or reasoning. Step 1: (3.9 − 9.4) − 0.6 + 6.1 Step 2: 3.9 + (− 9.4 − 0.6) + 6.1 (associative property) Step 3: 3.9 − 10 + 6.1 Step 4: 3.9 + 6.1 − 10 (identity property) Step 5: 10 − 10 = 0 He wrote identity instead of commutative in Step 4.
He wrote associative instead of commutative in Step 2.
He wrote identity instead of distributive in Step 4.
He wrote associative instead of distributive in Step 2.

ian gone lie this got me confused

step-by-step explanation:

19

step-by-step explanation:

37/3

step-by-step explanation:

step 1: simplify both sides of the equation.

7x+8(x+

1

4

)=3(6x−9)−8

7x+(8)(x)+(8)(

1

4

)=(3)(6x)+(3)(−9)+−8(distribute)

7x+8x+2=18x+−27+−8

(7x+8x)+(2)=(18x)+(−27+−8)(combine like terms)

15x+2=18x+−35

15x+2=18x−35

tep 2: subtract 18x from both sides.

15x+2−18x=18x−35−18x

−3x+2=−35

step 3: subtract 2 from both sides.

−3x+2−2=−35−2

−3x=−37

step 4: divide both sides by -3.

−3x

−3

=

−37

−3

x=

37

3

u = -(6/7)w

step-by-step explanation:

place all values with 'u' on one side of the equation.

4u + 8w = - 3u + 2w

4u + 3u = 2w - 8w

further simplify the equation by solving the addition and subtraction.

7u = - 6w

make 'u' the independent variable by placing its co-efficient on the right-hand side.

u = - (6/7)w