Question

7x-8y=12 linear. equation in one variable​

Answer 1

Answer:

$7x = 12 + 8y$

$x = 12 + 8y \div 7$

$7(12 + 8y) - 8y = 12$

$144 + 56y - 8y = 12$

$144 + 48y = 12$

$48y = 12 - 144 = 132$

$48y = - 132$

$y = 132 \div 48 = 2.75$

$7x = 12 + 8 \times 2.75$

$7x = 34$

$x = 34 \div 7$

Answer 2

Step-by-step explanation:

7x=12+8y

x = 12 + 8y

7(12 + 8y) - 8y = 127(12+8y)−8y=12

144 + 56y - 8y = 12144+56y−8y=12

144 + 48y = 12144+48y=12

48y = 12 - 144 = 13248y=12−144=132

48y = - 13248y=−132

y = 132

48 = 2.75y=132÷48=2.75

7x = 12 + 8

2.757x=12+8×2.75

7x = 347x=34

x = 34

7x=34÷7