Question

(a x 2 + 12) : 4 = 88 rest 2

Answer 1

$(a \times 2 + 12) \div 4 = 88 \: rest \: 2$

$(a \times 2 + 12) = 4 \times 88 + 12$

$a \times 2 + 12= 352 + 2$

$2a + 12 = 354$

$2a = 354 - 12$

$2a = 342$

$a = 342 \div 2$

$a = 171$

Answer 2

( a × 2 + 12 ) : 4 = 88 r 2

a × 2 + 12 = 88 × 4 + 2

a × 2 + 12 = 352 + 2

a × 2 + 12 = 354

a × 2 = 354 - 12

a × 2 = 342

a = 342 : 2

a = 171

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