Cara's brother is 7 years old.
14 is twice as much as 7 (7 * 2 = 14).
Answer:
x = 15°
y = 59°
Step-by-step explanation:
Angles at a right angle add up to 90°
41 + y = 90
y = 90 - 41
y = 59°
Angles in a triangle add up to 180°
41 + (2x - 9) + 7x + 13 = 180
41 + 13 - 9 + 2x + 7x = 180
45 + 9x = 180
9x = 180 - 45
9x = 135
x = 135/9
x = 15°
Answer:In general, any equation of the form ax + b = c, with a not equal to zero, can be solved in two steps. First add the opposite of b to both sides. Then multiply both sides by the reciprocal of a. x - 53 = 7.