1. what is the value of x in the equation –6 + x = –2? a. 4 b. –8 c. 8 d. –4 2. how many solutions does the equation –3a + 3a + 6 = 7 have? a. infinitely many b. two c. one d. none 3. what is the solution to the equation 1.2m – 0.8 = –2.0m? a. m = 0.25 b. m = 4 c. m = 1 d. m = 0.4 4. how many solutions does the equation 4p + 7 = 3 + 4 + 4p have? a. two b. infinitely many c. none d. one 5. what is the value of y in the equation 2(2y – 12) = 0? a. 4 b. 8 c. 7 d. 6 6. what is the value of z in the equation 2(4z – 9 – 7) = 166 – 46? a. 19 b. 34 c. 26 d. 21 7. which of these is a simplified form of the equation 7y + 7 = 9 + 2y + 2y?

in geometry, parallel lines are lines in a plane which do not meet; that is, two lines in a plane that do not intersect or touch each other at any point are said to be parallel. by extension, a line and a plane, or two planes, in three-dimensional euclidean space that do not share a point are said to be parallel.

system of linear equation

step-by-step explanation:

as given in the data

a= 20 , b= -12

let us suppose that it is a straight line equation

now we know the formula for the system of linear equation

b= ma + c )

here m is slope of a straight line which is equal to formula

m=   (ii)

and here c is a constant

now putting the value of a and b in equation (ii)

m=

m=

putting the value of a,b and m in equation (i) gives us

-12 = + c

-12=-12 + c

adding 12 to both sides

-12 +12 = -12 +12 +c

0 =c

or c=0

as the value of the constant is zero which gives us that it is a linear equation and this order pair satisfies the system of linear equations.