Question

$15a - (4a + 3a - 5a)$
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Answer 1

${ \huge{ \bold{\underline{ \underline{ \red{Solution:-}}}}}}$

$\leadsto{\tt{\blue{15a-(4a+3a-5a)}}}$

$\leadsto{\tt{\blue{15a-(4a-2a)}}}$

$\leadsto{\tt{\blue{15a-(2a)}}}$

$\leadsto{\tt{\blue{15a- 2a}}}$

$\leadsto{\tt{\blue{13a}}}$

Answer 2

15a -(4a+3a-5a)

= 15a( 7a -5a)
= 15a (2a)
= 15a-2a
=13 a