4a - 9 = 27
4a = 36
a = 9
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11a+9 = 4a+30 11a-4a = 30-9 7a = 21 Solution: a = 3
9 x 27 equals 243
5/9=x/27 135=9x 15=x
To solve this we simply plug in the value of x where any x's are found in the equation. 1) 27x - 27; x = -9 2) 27(-9) - 27 3) -243 - 27 = -270 So, 27x - 27 = -270 if x = -9.
27 divided by 3 equals 9. 27 divided by 9 equals 3.