ASVAB Math exam questions with
verified solutions(graded A+)
System of equations - answer A set of equations with the same variables. The solution is where
they intersect on a graph; substitution or elimination
*Substitution*
-3x - 4y = -2
y = 2x - 5 - answer *substitute for y*
-3x - 4(2x - 5) = -2
-3x - 8x + 20 = -2
-11x = -22
{x = 2}
*substitute for x*
y = 2(2) - 5
y=4-5
{y = -1}
solution = (2,1)
*Elimination/addition*
2x - 3y = 15
5x + 3y = 27 - answer *make sure either both x's OR both y's are the same*
2x - 3y = 15
5x + 3y = 27
*add to get rid of y's*
7x = 42
{x = 6}
verified solutions(graded A+)
System of equations - answer A set of equations with the same variables. The solution is where
they intersect on a graph; substitution or elimination
*Substitution*
-3x - 4y = -2
y = 2x - 5 - answer *substitute for y*
-3x - 4(2x - 5) = -2
-3x - 8x + 20 = -2
-11x = -22
{x = 2}
*substitute for x*
y = 2(2) - 5
y=4-5
{y = -1}
solution = (2,1)
*Elimination/addition*
2x - 3y = 15
5x + 3y = 27 - answer *make sure either both x's OR both y's are the same*
2x - 3y = 15
5x + 3y = 27
*add to get rid of y's*
7x = 42
{x = 6}
