Choose a system of equations with the same solution as the following system:
4x − 2y = 6
2x + y = 5
a.−4x − 2y = 10
2x − 3y = 21
b.4x + 2y = 10
10x + y = 21
c.−4x − 5y = −1
2x − 6y = 10
d.3x + 2y = 6
9x + y = 17

There are 20 children in the cast of a class play and 8 of the children are boys of the boys 4 have a speaking part in the play and of the girls 8 do not have a speaking part in the play if a child from the cast of the place chosen at random what is the probability that the child has a speaking part

(c) the diagram shows the first three shapes of a matchsticks arrangement.first shape = 3second shape = 5third shape = 7given m represents the number of matchstick used to arrange the n'th shape.(i) write a formula to represent the relation between m and n. express m as the subjectof the formula.(ii) 19 matchsticks are used to make the p'th shape. find the value of p.

What is the value of x in the equation 1.5x+4-3=4.5(x-2)?