29.4k views
3 votes
3 (4-x) = 18 What is X?

User Gorefest
by
8.3k points

2 Answers

6 votes

Answer:


\sf \: x = - 2

Explanation:

Given equation,

→ 3(4 - x) = 18

Now the value of x will be,

→ 3(4 - x) = 18

→ 12 - 3x = 18

→ -3x = 18 - 12

→ -3x = 6

→ x = 6 ÷ (-3)

→ [ x = -2 ]

Hence, the value of x is -2.

User Sandraqu
by
7.3k points
5 votes


3(4-x)=18

Distribute everything outside of parentheses:


(3)(4)+(3)(-x)=18


-3x+12=18

Subtract 12 from both sides:


-3x+12-12=18-12


-3x=6

Divide both sides by -3:


(-3x)/(-3) =(6)/(-3)


\fbox{x = -2}

User Jacke
by
8.2k points