Question

(c) If I take three-fourths of a number and add 3 to it, I get 21.
When I suhtracted 11 from twice a number, the result was 15.​

Answer 1

Answer:

c)24

d)13

Step-by-step explanation:

c)Let the number be x.

$\frac{3x}{4} + 3 = 21$

$\frac{3x + 12}{4} = 21$

$3x + 12 = 84$

$3x = 84 - 12 = 72$

$x = \frac{72}{3} = 24$

d)Let the number be x.

$2x - 11 = 15$

$2x = 15 + 11 = 26$

$x = \frac{26}{2} = 13$

Hope it helps you:)