Question

please tell in step by step

i will mark you as brainliest

40d41f96855276de67df25816b9cfa4f.docx

Answer 1

Answer:

answer is 6x

Step-by-step explanation:

cause you can multiply 2x+3x so answer will be 6x

Answer 2

$let \: \angle1 = 4x \\ \angle2 = 5x$

$\angle1 + \angle2 = 180 \degree$

$4x + 5x = 180$

$9x = 180$

$x = \frac{180}{9}$

$x = 20$

$\angle1 = \angle3 = 4 \times 20 = 80 \degree$

$\angle2 = \angle4 = 5 \times 20 = 100 \degree$