Answer:
a: 5.25 b: -0.33
Step-by-step explanation:
a:
4x - 5 = 16
isolate the variable. this is done by putting only the variable on the left side and the numbers on the right side. when moving the 5 to the right side, it is counted as a -5 because of the minus in front. when moving it, be sure to change from - to + and vice versa.
4x = 16 + 5
4x = 21
x = 21/4
x = 5.25
b:
same process
35 + 3x - 11 = 23
move the 35 to the right, changing it to a -35
3x - 11 = 23 - 35
move the -11
3x = 23 - 35 + 11
3x = -12 + 11
3x = -1
x = -1/3
x = -0.33
Hope I could help! If you have any trouble, tell me in the comments.
Answer:
a. [tex]x=5.25[/tex]
b. [tex]x=-0.33[/tex]
Step-by-step explanation:
You need to solve for the variable "x" in each equation. Then:
a. You need to add 5 to both sides of the equation:
[tex]4x - 5 +(5)= 16+(5)\\\\4x= 21[/tex]
Now you need to divide both sides of the equation by 4, getting:
[tex]\frac{4x}{4}=\frac{21}{4}\\\\x=5.25[/tex]
b. You need to subtract 35 from both sides of the equation:
[tex]35 + 3x - 11-(35)= 23-(35)\\\\3x-11=-12[/tex]
Add 11 to both sides:
[tex]3x-11+(11)=-12+(11)\\\\3x=-1[/tex]
Now you need to divide both sides of the equation by 3, getting:
[tex]\frac{3x}{3}=\frac{-1}{3}\\\\x=-0.33[/tex]
