Question

HELP

What is the value of x? 3(x−2)+5x=18

What is the value of z?53=−19z+5+7z

What is the value of n?−6.5(n−5)=18.2

What is the value of r?3/5(r−7)=1

What is the value of t?3.5(t+6)=7

Answer 1

Z = -4

Explanation:

Simplifying

53 = -19z + 5 + 7z

Reorder the terms:

53 = 5 + -19z + 7z

Combine like terms:

-19z + 7z = -12z

53 = 5 + -12z

Solving

53 = 5 + -12z

Move all terms containing z to the left, all other terms to the right.

Add '12z' to each side of the equation.

53 + 12z = 5 + -12z + 12z

Combine like terms:

-12z + 12z = 0

53 + 12z = 5 + 0

53 + 12z = 5

Add '-53' to each side of the equation.

53 + -53 + 12z = 5 + -53

Combine like terms: 53 + -53 = 0

0 + 12z = 5 + -53

12z = 5 + -53

Combine like terms: 5 + -53 = -48

12z = -48

Divide each side by '12'.

z = -4

Simplifying

z = -4

Answer 2

x=3

z=-4

n=11/5

r=26/3

t=-4

hope this helps