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Answer:
A = 10
Step-by-step explanation:
B x h/2=A
5 x 4 = 20
20/2 = 10
A= 10
Hope this helps :)
Answer:
idrk but it think u multiply them easily
Step-by-step explanation:
Step-by-step explanation:
Three times the sum of a number and 4 is the same as 18 less than a number.
Solution,
Let the number be x, then
3(x+4)=x-18
3x+12=x-18
3x-x=-18-12
2x=-30
x=-30/2
x=-15
