2z-7=13 +7 +7 add 7 to each side
2z=20
/2 /2 divide each side by 2
z=10 is your answer
That is an example of a wrong solution :]
-13/20 x=5 solution
no. 33 is an answer though.
X is 17
x = 3 and y = 2
a linear equation solution 5x-37=13 5x=13+37 5x=50 x=10
Since 13 is a prime number, that is the only integral solution. 26 x 0.5 = 13
10x + 13 = 1710x = 17-1310x = 4x = 4/10x = 0.4
10x + 13 = 17 ie 10x = 17 - 13 so x = 4/10 = 0.4
-13x = 52 x = -4 Check: -13*-4 = 52
2x plus 3y
'r' is equal to, or anywhere between, -13 and 38 .