Answer:
2
Step-by-step explanation:
<span>A) 2x + 2y = -3
B) 2x -y = 5
B) y = 2x -5
Substituting equation B into A
</span><span>A) 2x +2*(2x-5) = -3
2x + 4x -10 = -3
6x = 7
x = 1.16666666
y = 2*</span><span>1.16666667 -5
y = </span><span><span><span>-2.66666666
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Which question are you asking about?
Answer:
4+3x
It's pretty straight forward, you have the number 4 that is added to the rest of the expression because sum is addition, and the product of 2 numbers is multiplication so it would make 3(x) or 3x, which results in 4+3x.