Penjelasan dengan langkah-langkah:

jumlah sudut dalam Segiempat yaitu 360°

cari dulu nilai X seadanya.

4x = 360° - 5x + 2y + 3y

4x = 360 - 5x + 5y

4x + 5x = 360 + 5y

9x = 360 - 5y

x = 360/9 - 5y

x = 40 - 5y

4x + 5x + 2y + 3y = 360°

4(40 - 5y) + 5(40 - 5y) + 2y + 3y = 360

160 - 20y + 200 - 25y + 2y + 3y = 360

-20y - 25y + 2y + 3y + 1440 + 1800 = 360

-20y -25y + 5y = 360

-40y + 3240= 360

-40y = 360 - 3240

-40y = -2880

y = -2880/40

y = 72

4x + 5x + 2y + 3y = 360°

4x + 5x + 2(72) + 3(72) = 360

9x + 144 + 216 = 360

9x + 45 = 360

9x = 360 - 45

9x = 315

x = 315/9

x = 35

4x + 5x + 2y + 3y = 360°

4(35) + 5(35) + 2(9) + 3(9) = 360°

140 + 175 + 18 + 27 = 360°. betul sekali.

tentukan 2x + 3y = 2(35) + 3(9)

= 70 + 27

= 97 hehe Boaaiiiii

sabar bang jam 6:50 saya lanjut

saya mandi dlu for shalat