2/5(j+40) = -4 what is the answer to this equation help plz

Solution:

Given that,

We have to solve the above equation

Use the distributive property

a(b + c) = ab + bc

From given,

Move the constant to other side of equation

Thus the value of j is -50

a box 3 3/4 feet long or 4+ feet.

step-by-step explanation:

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18