Huilan's age is two times Thomas's age. The sum of their ages is 57. What is Thomas's age?
2 answers:
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Hi there!
• x = - 3
Let's first calculate f(x) and g(x) individually :-
• f(x) = 4x - 7
⇒ 4(- 3) - 7
⇒ - 12 - 7 = - 19
• g(x) = 2x + 4
⇒ 2(- 3) + 4
⇒ - 6 + 4 = - 2
According to th' question :-
f(x) + g(x)
⇒ - 19 + (- 2)
⇒ - 19 - 2
⇒ - 21
~ Hope it helps!
• x = - 3
Let's first calculate f(x) and g(x) individually :-
• f(x) = 4x - 7
⇒ 4(- 3) - 7
⇒ - 12 - 7 = - 19
• g(x) = 2x + 4
⇒ 2(- 3) + 4
⇒ - 6 + 4 = - 2
According to th' question :-
f(x) + g(x)
⇒ - 19 + (- 2)
⇒ - 19 - 2
⇒ - 21
~ Hope it helps!