I will do two of them, you do the rest in the same way
A) if a=-3 and b = 8 , you have
5x-7(x-1)= -3x+8
5x - 7x + 7 = -3x + 8
x = 1 , so it looks like one solution
d) -3(x-3)-1=ax+b
-3(x-3)-1= -3x+8
-3x + 9 - 1 = -3x + 8
0 = 0
If your variables drop out and you end up with a true statement, then you
have an infinite number of solutions
If your variables drop out and you end up with a false statement, then you
have no solution.
Of course if you can solve the equation, like in A), you will have one solution.
Substitute -3 for a and 8 for b in the given equations.
Tell whether each statement is True or False after substituting for a and b.
A. The equation 5x-7(x-1)= ax+b has exactly one solution. T or F
B. The equation 3(x-5)-7=ax+b has no solution. T or F
C. The equation 2-7x+3+4x=ax+b has no solution. T or F
D. The equation -3(x-3)-1=ax+b has infinitely many solutions. T or F
E. The equation -5x+2+2x+4=ax+b has infinitely many solutions. T or F
PLEASE HELP ME!!! ( and thank you so much if you do :P )
2 answers
thank you so much!! this was super helpful!!