A variable is a letter, for example x, y or z, that represents an unspecified number.
6 + x = 12
To evaluate an algebraic expression, you have to substitute a number for each variable and perform the arithmetic operations. In the example above, the variable x is equal to 6 since 6 + 6 = 12.
Answer:
y+v = x
Step-by-step explanation:
just add v to the other side
Answer:
option 3 : (2x - 7 )
Step-by-step explanation:
ax + bx = x(a+ b)
a(x+ y) + b(x+y) = (x+y)(a+b)
![(3x - 8 ) ( 2x + 5) - (x + 1)(2x + 5)\\\\(2x+5)[ (3x - 8) - (x+1) ]](https://tex.z-dn.net/?f=%283x%20-%208%20%29%20%28%202x%20%2B%205%29%20-%20%28x%20%2B%201%29%282x%20%2B%205%29%5C%5C%5C%5C%282x%2B5%29%5B%20%283x%20-%208%29%20-%20%28x%2B1%29%20%5D)
[ (2x + 5) is common is both terms ]
Therefore , the binomial is ( 2x - 7)
Answer:
How do you find the missing angles when the sides of a right triangle are given? ... that is part of the angle, and the hypotenuse is the side opposite the right angle, ... cos(A)=ac. Which rearranges to;. c=acos(A). If you know the length of both ... the angle of elevation to the top of the building is 68°.
