Answer:
x= -5
Step-by-step explanation:
when you add like terms to a different side you change the sign so instead of adding -7 to -12 it would be 7-12 which is -5
Answer:
17
Step-by-step explanation:
(5b, -1z)
You have to multiply the B and the C by 5 to get the original equation or you could divide the original equation by 5
<span>
For a triangle.
</span>40+3x+4x=180
The other two angles are 60 degrees and 80 degrees.