Question

5а + 2b - За + 4
$5a + 2b - 3a + 4$
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Answer 1

Step-by-step explanation:

$5x2 + 2 x3 - 3x2 + 4$

$10 + 6 - 6 + 4$

$10 + 6 = 16$

$16 - 6 = 10$

$10 + 4 = 14$

$14answer$

Answer 2

Answer:

2a+2b+4=0

2(a+b)=-4

a+b=-4/2

a+b=-2