Question

6. Two complementary angles are (x + 4)º and (2x - 7)º, find the value of x.​

Answer 1

Heya mate!!

Complementary angles sum 90°.

$x + 4 +2 x - 7 = 90 \\ 3x - 3 = 90 \\ 3x = 93 \\ x = \frac{93}{3} \\ x = 31$

Hope it helps you dear✌️✌️

Answer 2

Answer:

we know that the sum of two complementary angels is 90°.

so,

x + 4 + 2x - 7 = 90

=> 3x - 3 = 90

=> 3x = 90 + 3

=> 3x = 93

=> x = 93/3 = 31

so, first angle is

x + 4 = 31 + 4 = 35°

second angel is 2x - 7 = 2×31 - 7

= 62 - 7

= 55°.

so, the angels are 35° and 55°.