Answer:
{
}
Step-by-step explanation:
The given system of equations is;

and

We rewrite the equations in the standard form to get:


We now substitute equation (3) into equation (4) to get:

Group similar terms:


Divide both sides by 2

This implies that:

Therefore the solution set is:
{
}
Answer:
194
Step-by-step explanation:
2/3X=291
x=194
Answer:
5x<12
Step-by-step explanation:
Five times x is equally 5x fewer than is equally < # 5x<12
Answer:
2, 12, 36, 80
Step-by-step explanation:
Substitute n = 1, 2, 3, 4 into the n th term formula, that is
a₁ = 1³ + 1² = 1 + 1 = 2
a₂ = 2³ + 2² = 8 + 4 = 12
a₃ = 3³ + 3² = 27 + 9 = 36
a₄ = 4³ + 4² = 64 + 16 = 80