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yuradex [85]
3 years ago
12

" id="TexFormula1" title="32.5 = 30 + \frac{20 - (40 + x)}{12} \times 10" alt="32.5 = 30 + \frac{20 - (40 + x)}{12} \times 10" align="absmiddle" class="latex-formula">
please i need a step by step solution...I'll mark brainliest​
Mathematics
1 answer:
erastova [34]3 years ago
7 0

Answer:

x =  - 23

Step-by-step explanation:

\frac{20 - (40 + x)}{12}  \times 10 = 32.5 - 30 = 2.5

=  >  \frac{20 - (40 + x)}{12}  = 0.25

=  >  \frac{20 - (40 + x)}{12}  =  \frac{1}{4}

=  > 20 - (40 + x) =  \frac{12}{4}  = 3

=  > 40 + x = 20 - 3 = 17

=  > x = 17 - 40 =  - 23

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