Answer:
35
Step-by-step explanation:
Since we know that 7 b is the equation and 5 is the value of b we can substitute b in 7 b.
b = 5
7 b = 7 × 5 = 35
No, this is because right angles can also be formed
Answer:
Solve for the first variable in one of the equations, then substitute the result into the other equation.
x
=
−
1
Step-by-step explanation:
Answer:

Step-by-step explanation:
Hello,
let s assume that m+n is different from 0
we have this equation and we need to find m as a function of t, s, and n

<=>

for t-s different from 0, so t different from s
hope this helps