Question

a) 2(x-1) = 3x+4

b) 3 (x-1)-7=15
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Answer 1

A)

$\large 2(x - 1) = 3x + 4$

$\large2x - 2 = 3x + 4$

$\large2x - 3x = 4 + 2$

$\large - x = 6$

$\large \boxed{ {{ \: \red{x = - 6} \: }}}$

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B)

$\large3(x - 1) - 7 = 15$

$\large3x - 3 - 7 = 15$

$\large3x - 10 = 15$

$\large3x = 15 + 10$

$\large3x = 25$

$\large \boxed{ {{ \: \red{x = \frac{25}{3} } \: }}}$

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Att, IzabelaCristina2006 ❤️ ♈