4(3+x)
This is because 4*3=12 and 4*x is 4x so you get 12+4x which is the original equation
5/8 9/x
Cross multiply
9x8=72
5×x=5x
Rewrite the equation
72 = 5x
Divide by 5
72÷5=14.4
So, x=14.4
Use order of operations or ----> PEMDAS
(9.2-4.9÷7) +36.4
first divide -4.9 by 7 in the parenthesis.
9.2-0.7+34.6
now add -0.7 and 34.6
9.2+33.9
now add these numbers together and your answer is.... 43.1
PROBLEM 9:
0.25
PROBLEM 8:
3/14
PROBLEM 7:
1 1/12 or 13/12
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