Answer:
[tex]\boxed{x =47}[/tex]
Step-by-step explanation:
[tex]3(x-40)=21[/tex]
Step 1: Simplify both sides of the equation.
[tex]3(x-40)=21[/tex]
[tex](3)^{(x)} + (3) (-40) = 21[/tex] (Distribute)
[tex]3x+ -120 = 21[/tex]
[tex]3x - 120 = 21[/tex]
Step 2: Add 120 to both sides.
[tex]3x - 120 + 120 = 21 + 120[/tex]
[tex]3x = 141[/tex]
Step 3: Divide both sides by 3.
[tex]\frac{3x}{3} = \frac{141}{3}[/tex]
[tex]x = 47[/tex]
Hope this helped you!
