Question

4. (x-10)+3. (x-12)>24

Answer 1

$4. (x-10)+3. (x-12)\ \textgreater \ 24 \\4x-40+3x-36\ \textgreater \ 24 \\7x\ \textgreater \ 24+40+36 \\7x\ \textgreater \ 100 \\x\ \textgreater \ \frac{100}{7} \\x\ \textgreater \ 14,29$

Answer 2

4.(x - 10) + 3.(x - 12) > 24
4x - 40 + 3x - 36 > 24
4x + 3x - 40 - 36 > 24
7x - 76 > 24
7x > 24 + 76
7x > 100
x > 100/7

R.: {x E R / x > 100/7}