Question

a)x/2=6
b)y/2=-1
4- a) 12x-10=5x+11
b) 7x+5=68-2x
c)3.(x-1)=6​

Answer 1

a)

$\frac{x}{2} = 6\\x = 6 \cdot 2\\x = 12$

12

b)

$\frac{y}{2} = -1\\y = -1 \cdot 2\\y = -2$

-2

c)

$7x + 5 = 68 - 2x\\7x + 2x = 68 - 5\\9x = 63\\x = \frac{63}{9}\\x = 7$

7

d)

$3x \cdot -3 = 6\\3x = 6 + 3\\3x = 9\\x = \frac{9}{3} \\x = 3$

3