• 8x + 17 = 57
Cari nilai x
• 9y - 15 = 66
Cari nilai y
• x + y
Plsv
- 8x + 17 = 57
[tex] \sf8x + 17 = 57[/tex]
[tex] \sf8x = 57 - 17[/tex]
[tex] \sf 8x = 40[/tex]
[tex] \sf{x = \frac{40}{8} }[/tex]
[tex] \sf{x = \underline{5}}[/tex]
--------------------------------------------------------
- 9y - 15 = 66
[tex] \sf9y - 15 = 66[/tex]
[tex] \sf 9y= 66 + 15[/tex]
[tex] \sf9y = 81[/tex]
[tex] \sf{y = \frac{81}{9} }[/tex]
[tex] \sf{y = \underline{9}}[/tex]
--------------------------------------------------------
- x + y
x + y
= 5 + 9
= 14
Penyelesaian :
-----------------------------------
mencari nilai x
8x + 17 = 57
8x = 57 - 17
8x = 40
x = 40 ÷ 8
x = 5
------------------------------------
mencari nilai y
9y - 15 = 66
9y = 66 + 15
9y = 81
y = 81 ÷ 9
y = 9
-------------------------------
mencari nilai x + y
x = 5
y = 9
= x + y
= 5 + 9
= 14
[tex] \colorbox{violet}{ \tt\colorbox{ff0000}{}\colorbox{00ff00}{}\colorbox{00ffc0}{C}\colorbox{00ffff}{a}\colorbox{00c0ff}{l}\colorbox{0080ff}{l}\colorbox{0040ff}{M}\colorbox{0000ff}{}\colorbox{4000ff}{e}\colorbox{8000ff}{I}\colorbox{c000ff}{r}\colorbox{ff00ff}{i}\colorbox{ff00c0}{s}\colorbox{ff00a0}{h}\colorbox{ff0040}{}}[/tex]
[answer.2.content]
