Multiply all the terms by the same value to eliminate fraction denominators
a/9=-4
9 . a/9=9(-4)
The dot means multiplication
Then simplify to simplify cancel the multiplied terms that are in the denominator
a=9 . -4
Multiply the number
9 . -4 =36
And don’t forget to add the negative sign so the answer is
a= -36
3x-13=305
3x=305+13
3x=318
(3x)÷3=318÷3
x=106
check.. (3×106)-13=305
318-13=305
305=305
Your answer is unlikely. That would be a 1 out of 10 chance.
A negative number is a number that isn’t going down and a positive is a number that is going up on a number scale
Rainfall in July = 2.79 inches.
July has 31 days.
2.79 : 31 = x : 1 Set up the proportion
2.79 / 31 = x/1 Cross multiply and switch.
2.79*1 / 31 = x Do the division
0.09 inches = x Answer
