Question

0.4x + 1.18 = -3.1(2-0.01x)

Answer 1

x= - 20

Explanation:

Expand.

0.4x + 1.18 =−6.2 + 0.031x

Regroup terms.

0.4x + 1.18 = 0.031x − 6.2

Subtract 0.031x both sides.

0.4x + 1.18 − 0.031x = −6.2

Simplify 0.4x + 1.18 − 0.031x to 0.369x + 1.18

0.369x + 1.18 = −6.2

Subtract 1.18 from both sides.

0.369x = −6.2 − 1.18

Simplify −6.2 −1.18 to −7.38

0.369x = −7.38

Divide both sides by 0.369

x= −7.38/ 0.369

Simplify

7.38/ 0.369 to 20

x=−20

Hope this helped love! If i didn't let me know how i can better help you :) Have a nice day. And keep pushing you can do this math sucks but you will pass the class sooner or later!

Answer 2

x = -20

Explanation:

0.4x + 1.18 = -3.1(2-0.01x) (expand parenthesis using distributive property)

0.4x + 1.18 = (-3.1)(2) - (-3.1)(0.01x)

0.4x + 1.18 = -6.2 + 0.031x (rearrange to move all x to one side)

0.4x -0.031x = -6.2 -1.18

0.369x = -7.38

x = -7.38 / 0.369

x = -20