10+5x=7x-4
1. simplify 7x - 5x
10=2x-4
2. add four to both sides
10+4=2x
+ 4 4
14=2x
3. divide 14 to both sides
14=2x
x=7
Answer:
The slope is -1/4
Step-by-step explanation:
perpendicular line is 
11 * 6.5 = 71.5
<span>15 - 71.5 = -56.5</span>
Answer:
1209 square meters
Step-by-step explanation:
2(1/2*16*15)+3(17*19)=1209
Multiply all the dimensions together to get 1000. 10 for each side satisfies this.