You divide by -7 on both sides then add three to both sides and the answer is -3
X = 35
use the formula a^2 + b^2 = c^2 in order to find the hypotenuse, which is x.
21^2 + 28^2 = c^2
441 + 784 = c^2
1225 = c^2
35 = c
x = 35
Answer:
pliz send me the formula, only dsn I can solve your answer
The answer is 10.5 because the equation is 2x+8=29
A=3.75
15/4 = 3.75
4(3.75)=15