Question

(7xa+90:10-27:9):8=7

a=.....

Answer 1

(7a+9-3):8=7
7a+6=56
7a=50
a=50/7

Answer 2

Salut !

$(7 \times a + 90:10 - 27:9):8 = 7$

$(7 \times a + 9 - 3):8 = 7$

$(7 \times a + 9 - 3) = 8 \times 7$

$7 \times a + 9 - 3 = 56$

$7 \times a + 6 = 56$

$7 \times a =56-6$

$7 \times a =50$

$a = \frac{50}{7}$

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