Question

I need answers please l don’t understand please show working to help me please

Answer 1

Answer:

1)

$10t=8+9t+5$

$10t=9t+13$

$10t-9t=13$

$t=13$

2)

$-12=3x$

$-4=x$

$x=-4$

3)

$-5+3x=x+9$

$3x=x+9+5$

$3x=x+14$

$3x-x=14$

$2x=14$

$\frac{2x}{2}=\frac{14}{2}$

$x=7$

4)

$10a=-15+7a$

$10a-7a=-15$

$3a=-15$

$\frac{3a}{3}=\frac{-15}{3}$

$a=-5$

5)

$7x=6x+27$

$7x-6x=x$

$x=27$

6)

$-3x-6=-5x+10$

$-3x=-5x+16$

$-3x+5x=16$

$2x=16$

$\frac{2x}{2}=\frac{16}{2}$

$x=8$

7)

$2y-4=10y+12$

$-4=8y+12$

$-4-12=8y$

$-16=8y$

$\frac{8y}{8}=\frac{-16}{8}$

$y=-2$

8)

$-9a+1=6-4a$

$1=6+5a$

$1-6=5a$

$-5=5a$

$\frac{5a}{5}=\frac{-5}{5}$

$a=-1$

Hope this helps!