(4y + 5) + (-7y - 1)
a. 3y + 4
b. 3y + 4
c. 11y + 4
d. 3y + 6

-3y + 4

Explanation:

(4y + 5) + (-7y - 1)

[ Remove Parenthesis ]

= 4y + 5 + -7y - 1

[ Group Like Terms ]

= 4y - 7y + 5 - 1

[ Add / Subtract Similar Elements ]

4y - 7y = -3y

5 - 1 = 4

= -3y + 4

x = 2

step-by-step explanation:

if sr parallel to ba then the sides bc and ac are in proportion, that is

= ← substitute values

= ( cross- multiply )

27x = 6(4x + 1)

27x = 24x + 6 ( subtract 24x from both sides )

3x = 6 ( divide both sides by 3 )

x = 2

solve systems of equations by graphing. a system of linear equations contains two or more equations e.g. y=0.5x+2 and y=x-2. the solution of such a system is the ordered pair that is a solution to both equations. to solve a system of linear equations graphically we graph both equations in the same coordinate system