Question

What is the value for x in the proportion x over x plus ten equals seven over twelve?

Answer 1

\[\frac{ x }{ x+10 }=\frac{ 7 }{ 12 }\]

Answer 2

cross multiply to get 12x = 7x + 70
now solve for x

Answer 3

so we cross multiply
12x=7(x+10) distribute 7 across the expressino
12x=7x+70 substract 7x from both sides
5x=70 divide by 5
x=14

Answer 4

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